Spin density matrix elements in exclusive %$\omega %$ meson muoproduction
Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2...
Ausführliche Beschreibung
Autor*in: |
Alexeev, G. D. [verfasserIn] Alexeev, M. G. [verfasserIn] Amoroso, A. [verfasserIn] Andrieux, V. [verfasserIn] Anosov, V. [verfasserIn] Antoshkin, A. [verfasserIn] Augsten, K. [verfasserIn] Augustyniak, W. [verfasserIn] Azevedo, C. D. R. [verfasserIn] Badełek, B. [verfasserIn] Balestra, F. [verfasserIn] Ball, M. [verfasserIn] Barth, J. [verfasserIn] Beck, R. [verfasserIn] Bedfer, Y. [verfasserIn] Antequera, J. Berenguer [verfasserIn] Bernhard, J. [verfasserIn] Bodlak, M. [verfasserIn] Bradamante, F. [verfasserIn] Bressan, A. [verfasserIn] Burtsev, V. E. [verfasserIn] Chang, W.-C. [verfasserIn] Chatterjee, C. [verfasserIn] Chiosso, M. [verfasserIn] Chumakov, A. G. [verfasserIn] Chung, S.-U. [verfasserIn] Cicuttin, A. [verfasserIn] Correia, P. M. M. [verfasserIn] Crespo, M. L. [verfasserIn] D’Ago, D. [verfasserIn] Torre, S. Dalla [verfasserIn] Dasgupta, S. S. [verfasserIn] Dasgupta, S. [verfasserIn] Denisenko, I. [verfasserIn] Denisov, O. Yu. [verfasserIn] Donskov, S. V. [verfasserIn] Doshita, N. [verfasserIn] Dreisbach, Ch. [verfasserIn] Dünnweber, W. [verfasserIn] Dusaev, R. R. [verfasserIn] Efremov, A. [verfasserIn] Eversheim, P. D. [verfasserIn] Faccioli, P. [verfasserIn] Faessler, M. [verfasserIn] Ferrero, A. [verfasserIn] Finger, M. [verfasserIn] Fischer, H. [verfasserIn] Franco, C. [verfasserIn] Friedrich, J. M. [verfasserIn] Frolov, V. [verfasserIn] Gautheron, F. [verfasserIn] Gavrichtchouk, O. P. [verfasserIn] Gerassimov, S. [verfasserIn] Giarra, J. [verfasserIn] Gnesi, I. [verfasserIn] Gorzellik, M. [verfasserIn] Grasso, A. [verfasserIn] Gridin, A. [verfasserIn] Perdekamp, M. Grosse [verfasserIn] Grube, B. [verfasserIn] Guskov, A. [verfasserIn] von Harrach, D. [verfasserIn] Heitz, R. [verfasserIn] Herrmann, F. [verfasserIn] Horikawa, N. [verfasserIn] d’Hose, N. [verfasserIn] Hsieh, C.-Y. [verfasserIn] Huber, S. [verfasserIn] Ishimoto, S. [verfasserIn] Ivanov, A. [verfasserIn] Iwata, T. [verfasserIn] Jandek, M. [verfasserIn] Jary, V. [verfasserIn] Jörg, P. [verfasserIn] Joosten, R. [verfasserIn] Kabuß, E. [verfasserIn] Kaspar, F. [verfasserIn] Kerbizi, A. [verfasserIn] Ketzer, B. [verfasserIn] Khaustov, G. V. [verfasserIn] Khokhlov, Yu. A. [verfasserIn] Kisselev, Yu. [verfasserIn] Klein, F. [verfasserIn] Koivuniemi, J. H. [verfasserIn] Kolosov, V. N. [verfasserIn] Horikawa, K. Kondo [verfasserIn] Konorov, I. [verfasserIn] Konstantinov, V. F. [verfasserIn] Kotzinian, A. M. [verfasserIn] Kouznetsov, O. M. [verfasserIn] Koval, A. [verfasserIn] Kral, Z. [verfasserIn] Krinner, F. [verfasserIn] Kulinich, Y. [verfasserIn] Kunne, F. [verfasserIn] Kurek, K. [verfasserIn] Kurjata, R. P. [verfasserIn] Kveton, A. [verfasserIn] Lavickova, K. [verfasserIn] Levorato, S. [verfasserIn] Lian, Y.-S. [verfasserIn] Lichtenstadt, J. [verfasserIn] Lin, P.-J. [verfasserIn] Longo, R. [verfasserIn] Lyubovitskij, V. E. [verfasserIn] Maggiora, A. [verfasserIn] Magnon, A. [verfasserIn] Makins, N. [verfasserIn] Makke, N. [verfasserIn] Mallot, G. K. [verfasserIn] Maltsev, A. [verfasserIn] Mamon, S. A. [verfasserIn] Marianski, B. [verfasserIn] Martin, A. [verfasserIn] Marzec, J. [verfasserIn] Matoušek, J. [verfasserIn] Matsuda, T. [verfasserIn] Mattson, G. [verfasserIn] Meshcheryakov, G. V. [verfasserIn] Meyer, M. [verfasserIn] Meyer, W. [verfasserIn] Mikhailov, Yu. V. [verfasserIn] Mikhasenko, M. [verfasserIn] Mitrofanov, E. [verfasserIn] Mitrofanov, N. [verfasserIn] Miyachi, Y. [verfasserIn] Moretti, A. [verfasserIn] Nagaytsev, A. [verfasserIn] Naim, C. [verfasserIn] Neyret, D. [verfasserIn] Nový, J. [verfasserIn] Nowak, W.-D. [verfasserIn] Nukazuka, G. [verfasserIn] Nunes, A. S. [verfasserIn] Olshevsky, A. G. [verfasserIn] Ostrick, M. [verfasserIn] Panzieri, D. [verfasserIn] Parsamyan, B. [verfasserIn] Paul, S. [verfasserIn] Pekeler, H. [verfasserIn] Peng, J.-C. [verfasserIn] Pešek, M. [verfasserIn] Peshekhonov, D. V. [verfasserIn] Pešková, M. [verfasserIn] Pierre, N. [verfasserIn] Platchkov, S. [verfasserIn] Pochodzalla, J. [verfasserIn] Polyakov, V. A. [verfasserIn] Pretz, J. [verfasserIn] Quaresma, M. [verfasserIn] Quintans, C. [verfasserIn] Regali, C. [verfasserIn] Reicherz, G. [verfasserIn] Riedl, C. [verfasserIn] Rudnicki, T. [verfasserIn] Ryabchikov, D. I. [verfasserIn] Rybnikov, A. [verfasserIn] Rychter, A. [verfasserIn] Samoylenko, V. D. [verfasserIn] Sandacz, A. [verfasserIn] Sarkar, S. [verfasserIn] Savin, I. A. [verfasserIn] Sbrizzai, G. [verfasserIn] Schmieden, H. [verfasserIn] Selyunin, A. [verfasserIn] Sinha, L. [verfasserIn] Slunecka, M. [verfasserIn] Smolik, J. [verfasserIn] Srnka, A. [verfasserIn] Steffen, D. [verfasserIn] Stolarski, M. [verfasserIn] Subrt, O. [verfasserIn] Sulc, M. [verfasserIn] Suzuki, H. [verfasserIn] Szameitat, T. [verfasserIn] Sznajder, P. [verfasserIn] Tessaro, S. [verfasserIn] Tessarotto, F. [verfasserIn] Thiel, A. [verfasserIn] Tomsa, J. [verfasserIn] Tosello, F. [verfasserIn] Townsend, A. [verfasserIn] Tskhay, V. [verfasserIn] Uhl, S. [verfasserIn] Vasilishin, B. I. [verfasserIn] Vauth, A. [verfasserIn] Veit, B. M. [verfasserIn] Veloso, J. [verfasserIn] Ventura, B. [verfasserIn] Vidon, A. [verfasserIn] Virius, M. [verfasserIn] Wagner, M. [verfasserIn] Wallner, S. [verfasserIn] Zaremba, K. [verfasserIn] Zavada, P. [verfasserIn] Zavertyaev, M. [verfasserIn] Zemko, M. [verfasserIn] Zemlyanichkina, E. [verfasserIn] Zhao, Y. [verfasserIn] Ziembicki, M. [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2021 |
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Übergeordnetes Werk: |
Enthalten in: The European physical journal - Berlin : Springer, 1998, 81(2021), 2 vom: Feb. |
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Übergeordnetes Werk: |
volume:81 ; year:2021 ; number:2 ; month:02 |
Links: |
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DOI / URN: |
10.1140/epjc/s10052-020-08740-y |
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Katalog-ID: |
SPR043024343 |
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100 | 1 | |a Alexeev, G. D. |e verfasserin |4 aut | |
245 | 1 | 0 | |a Spin density matrix elements in exclusive %$\omega %$ meson muoproduction |
264 | 1 | |c 2021 | |
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520 | |a Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. | ||
700 | 1 | |a Alexeev, M. G. |e verfasserin |4 aut | |
700 | 1 | |a Amoroso, A. |e verfasserin |4 aut | |
700 | 1 | |a Andrieux, V. |e verfasserin |4 aut | |
700 | 1 | |a Anosov, V. |e verfasserin |4 aut | |
700 | 1 | |a Antoshkin, A. |e verfasserin |4 aut | |
700 | 1 | |a Augsten, K. |e verfasserin |4 aut | |
700 | 1 | |a Augustyniak, W. |e verfasserin |4 aut | |
700 | 1 | |a Azevedo, C. D. R. |e verfasserin |4 aut | |
700 | 1 | |a Badełek, B. |e verfasserin |4 aut | |
700 | 1 | |a Balestra, F. |e verfasserin |4 aut | |
700 | 1 | |a Ball, M. |e verfasserin |4 aut | |
700 | 1 | |a Barth, J. |e verfasserin |4 aut | |
700 | 1 | |a Beck, R. |e verfasserin |4 aut | |
700 | 1 | |a Bedfer, Y. |e verfasserin |4 aut | |
700 | 1 | |a Antequera, J. Berenguer |e verfasserin |4 aut | |
700 | 1 | |a Bernhard, J. |e verfasserin |4 aut | |
700 | 1 | |a Bodlak, M. |e verfasserin |4 aut | |
700 | 1 | |a Bradamante, F. |e verfasserin |4 aut | |
700 | 1 | |a Bressan, A. |e verfasserin |4 aut | |
700 | 1 | |a Burtsev, V. E. |e verfasserin |4 aut | |
700 | 1 | |a Chang, W.-C. |e verfasserin |4 aut | |
700 | 1 | |a Chatterjee, C. |e verfasserin |4 aut | |
700 | 1 | |a Chiosso, M. |e verfasserin |4 aut | |
700 | 1 | |a Chumakov, A. G. |e verfasserin |4 aut | |
700 | 1 | |a Chung, S.-U. |e verfasserin |4 aut | |
700 | 1 | |a Cicuttin, A. |e verfasserin |4 aut | |
700 | 1 | |a Correia, P. M. M. |e verfasserin |4 aut | |
700 | 1 | |a Crespo, M. L. |e verfasserin |4 aut | |
700 | 1 | |a D’Ago, D. |e verfasserin |4 aut | |
700 | 1 | |a Torre, S. Dalla |e verfasserin |4 aut | |
700 | 1 | |a Dasgupta, S. S. |e verfasserin |4 aut | |
700 | 1 | |a Dasgupta, S. |e verfasserin |4 aut | |
700 | 1 | |a Denisenko, I. |e verfasserin |4 aut | |
700 | 1 | |a Denisov, O. Yu. |e verfasserin |4 aut | |
700 | 1 | |a Donskov, S. V. |e verfasserin |4 aut | |
700 | 1 | |a Doshita, N. |e verfasserin |4 aut | |
700 | 1 | |a Dreisbach, Ch. |e verfasserin |4 aut | |
700 | 1 | |a Dünnweber, W. |e verfasserin |4 aut | |
700 | 1 | |a Dusaev, R. R. |e verfasserin |4 aut | |
700 | 1 | |a Efremov, A. |e verfasserin |4 aut | |
700 | 1 | |a Eversheim, P. D. |e verfasserin |4 aut | |
700 | 1 | |a Faccioli, P. |e verfasserin |4 aut | |
700 | 1 | |a Faessler, M. |e verfasserin |4 aut | |
700 | 1 | |a Ferrero, A. |e verfasserin |4 aut | |
700 | 1 | |a Finger, M. |e verfasserin |4 aut | |
700 | 1 | |a Finger, M. |e verfasserin |4 aut | |
700 | 1 | |a Fischer, H. |e verfasserin |4 aut | |
700 | 1 | |a Franco, C. |e verfasserin |4 aut | |
700 | 1 | |a Friedrich, J. M. |e verfasserin |4 aut | |
700 | 1 | |a Frolov, V. |e verfasserin |4 aut | |
700 | 1 | |a Gautheron, F. |e verfasserin |4 aut | |
700 | 1 | |a Gavrichtchouk, O. P. |e verfasserin |4 aut | |
700 | 1 | |a Gerassimov, S. |e verfasserin |4 aut | |
700 | 1 | |a Giarra, J. |e verfasserin |4 aut | |
700 | 1 | |a Gnesi, I. |e verfasserin |4 aut | |
700 | 1 | |a Gorzellik, M. |e verfasserin |4 aut | |
700 | 1 | |a Grasso, A. |e verfasserin |4 aut | |
700 | 1 | |a Gridin, A. |e verfasserin |4 aut | |
700 | 1 | |a Perdekamp, M. Grosse |e verfasserin |4 aut | |
700 | 1 | |a Grube, B. |e verfasserin |4 aut | |
700 | 1 | |a Guskov, A. |e verfasserin |4 aut | |
700 | 1 | |a von Harrach, D. |e verfasserin |4 aut | |
700 | 1 | |a Heitz, R. |e verfasserin |4 aut | |
700 | 1 | |a Herrmann, F. |e verfasserin |4 aut | |
700 | 1 | |a Horikawa, N. |e verfasserin |4 aut | |
700 | 1 | |a d’Hose, N. |e verfasserin |4 aut | |
700 | 1 | |a Hsieh, C.-Y. |e verfasserin |4 aut | |
700 | 1 | |a Huber, S. |e verfasserin |4 aut | |
700 | 1 | |a Ishimoto, S. |e verfasserin |4 aut | |
700 | 1 | |a Ivanov, A. |e verfasserin |4 aut | |
700 | 1 | |a Iwata, T. |e verfasserin |4 aut | |
700 | 1 | |a Jandek, M. |e verfasserin |4 aut | |
700 | 1 | |a Jary, V. |e verfasserin |4 aut | |
700 | 1 | |a Jörg, P. |e verfasserin |4 aut | |
700 | 1 | |a Joosten, R. |e verfasserin |4 aut | |
700 | 1 | |a Kabuß, E. |e verfasserin |4 aut | |
700 | 1 | |a Kaspar, F. |e verfasserin |4 aut | |
700 | 1 | |a Kerbizi, A. |e verfasserin |4 aut | |
700 | 1 | |a Ketzer, B. |e verfasserin |4 aut | |
700 | 1 | |a Khaustov, G. V. |e verfasserin |4 aut | |
700 | 1 | |a Khokhlov, Yu. A. |e verfasserin |4 aut | |
700 | 1 | |a Kisselev, Yu. |e verfasserin |4 aut | |
700 | 1 | |a Klein, F. |e verfasserin |4 aut | |
700 | 1 | |a Koivuniemi, J. H. |e verfasserin |4 aut | |
700 | 1 | |a Kolosov, V. N. |e verfasserin |4 aut | |
700 | 1 | |a Horikawa, K. Kondo |e verfasserin |4 aut | |
700 | 1 | |a Konorov, I. |e verfasserin |4 aut | |
700 | 1 | |a Konstantinov, V. F. |e verfasserin |4 aut | |
700 | 1 | |a Kotzinian, A. M. |e verfasserin |4 aut | |
700 | 1 | |a Kouznetsov, O. M. |e verfasserin |4 aut | |
700 | 1 | |a Koval, A. |e verfasserin |4 aut | |
700 | 1 | |a Kral, Z. |e verfasserin |4 aut | |
700 | 1 | |a Krinner, F. |e verfasserin |4 aut | |
700 | 1 | |a Kulinich, Y. |e verfasserin |4 aut | |
700 | 1 | |a Kunne, F. |e verfasserin |4 aut | |
700 | 1 | |a Kurek, K. |e verfasserin |4 aut | |
700 | 1 | |a Kurjata, R. P. |e verfasserin |4 aut | |
700 | 1 | |a Kveton, A. |e verfasserin |4 aut | |
700 | 1 | |a Lavickova, K. |e verfasserin |4 aut | |
700 | 1 | |a Levorato, S. |e verfasserin |4 aut | |
700 | 1 | |a Lian, Y.-S. |e verfasserin |4 aut | |
700 | 1 | |a Lichtenstadt, J. |e verfasserin |4 aut | |
700 | 1 | |a Lin, P.-J. |e verfasserin |4 aut | |
700 | 1 | |a Longo, R. |e verfasserin |4 aut | |
700 | 1 | |a Lyubovitskij, V. E. |e verfasserin |4 aut | |
700 | 1 | |a Maggiora, A. |e verfasserin |4 aut | |
700 | 1 | |a Magnon, A. |e verfasserin |4 aut | |
700 | 1 | |a Makins, N. |e verfasserin |4 aut | |
700 | 1 | |a Makke, N. |e verfasserin |4 aut | |
700 | 1 | |a Mallot, G. K. |e verfasserin |4 aut | |
700 | 1 | |a Maltsev, A. |e verfasserin |4 aut | |
700 | 1 | |a Mamon, S. A. |e verfasserin |4 aut | |
700 | 1 | |a Marianski, B. |e verfasserin |4 aut | |
700 | 1 | |a Martin, A. |e verfasserin |4 aut | |
700 | 1 | |a Marzec, J. |e verfasserin |4 aut | |
700 | 1 | |a Matoušek, J. |e verfasserin |4 aut | |
700 | 1 | |a Matsuda, T. |e verfasserin |4 aut | |
700 | 1 | |a Mattson, G. |e verfasserin |4 aut | |
700 | 1 | |a Meshcheryakov, G. V. |e verfasserin |4 aut | |
700 | 1 | |a Meyer, M. |e verfasserin |4 aut | |
700 | 1 | |a Meyer, W. |e verfasserin |4 aut | |
700 | 1 | |a Mikhailov, Yu. V. |e verfasserin |4 aut | |
700 | 1 | |a Mikhasenko, M. |e verfasserin |4 aut | |
700 | 1 | |a Mitrofanov, E. |e verfasserin |4 aut | |
700 | 1 | |a Mitrofanov, N. |e verfasserin |4 aut | |
700 | 1 | |a Miyachi, Y. |e verfasserin |4 aut | |
700 | 1 | |a Moretti, A. |e verfasserin |4 aut | |
700 | 1 | |a Nagaytsev, A. |e verfasserin |4 aut | |
700 | 1 | |a Naim, C. |e verfasserin |4 aut | |
700 | 1 | |a Neyret, D. |e verfasserin |4 aut | |
700 | 1 | |a Nový, J. |e verfasserin |4 aut | |
700 | 1 | |a Nowak, W.-D. |e verfasserin |4 aut | |
700 | 1 | |a Nukazuka, G. |e verfasserin |4 aut | |
700 | 1 | |a Nunes, A. S. |e verfasserin |4 aut | |
700 | 1 | |a Olshevsky, A. G. |e verfasserin |4 aut | |
700 | 1 | |a Ostrick, M. |e verfasserin |4 aut | |
700 | 1 | |a Panzieri, D. |e verfasserin |4 aut | |
700 | 1 | |a Parsamyan, B. |e verfasserin |4 aut | |
700 | 1 | |a Paul, S. |e verfasserin |4 aut | |
700 | 1 | |a Pekeler, H. |e verfasserin |4 aut | |
700 | 1 | |a Peng, J.-C. |e verfasserin |4 aut | |
700 | 1 | |a Pešek, M. |e verfasserin |4 aut | |
700 | 1 | |a Peshekhonov, D. V. |e verfasserin |4 aut | |
700 | 1 | |a Pešková, M. |e verfasserin |4 aut | |
700 | 1 | |a Pierre, N. |e verfasserin |4 aut | |
700 | 1 | |a Platchkov, S. |e verfasserin |4 aut | |
700 | 1 | |a Pochodzalla, J. |e verfasserin |4 aut | |
700 | 1 | |a Polyakov, V. A. |e verfasserin |4 aut | |
700 | 1 | |a Pretz, J. |e verfasserin |4 aut | |
700 | 1 | |a Quaresma, M. |e verfasserin |4 aut | |
700 | 1 | |a Quintans, C. |e verfasserin |4 aut | |
700 | 1 | |a Regali, C. |e verfasserin |4 aut | |
700 | 1 | |a Reicherz, G. |e verfasserin |4 aut | |
700 | 1 | |a Riedl, C. |e verfasserin |4 aut | |
700 | 1 | |a Rudnicki, T. |e verfasserin |4 aut | |
700 | 1 | |a Ryabchikov, D. I. |e verfasserin |4 aut | |
700 | 1 | |a Rybnikov, A. |e verfasserin |4 aut | |
700 | 1 | |a Rychter, A. |e verfasserin |4 aut | |
700 | 1 | |a Samoylenko, V. D. |e verfasserin |4 aut | |
700 | 1 | |a Sandacz, A. |e verfasserin |4 aut | |
700 | 1 | |a Sarkar, S. |e verfasserin |4 aut | |
700 | 1 | |a Savin, I. A. |e verfasserin |4 aut | |
700 | 1 | |a Sbrizzai, G. |e verfasserin |4 aut | |
700 | 1 | |a Schmieden, H. |e verfasserin |4 aut | |
700 | 1 | |a Selyunin, A. |e verfasserin |4 aut | |
700 | 1 | |a Sinha, L. |e verfasserin |4 aut | |
700 | 1 | |a Slunecka, M. |e verfasserin |4 aut | |
700 | 1 | |a Smolik, J. |e verfasserin |4 aut | |
700 | 1 | |a Srnka, A. |e verfasserin |4 aut | |
700 | 1 | |a Steffen, D. |e verfasserin |4 aut | |
700 | 1 | |a Stolarski, M. |e verfasserin |4 aut | |
700 | 1 | |a Subrt, O. |e verfasserin |4 aut | |
700 | 1 | |a Sulc, M. |e verfasserin |4 aut | |
700 | 1 | |a Suzuki, H. |e verfasserin |4 aut | |
700 | 1 | |a Szameitat, T. |e verfasserin |4 aut | |
700 | 1 | |a Sznajder, P. |e verfasserin |4 aut | |
700 | 1 | |a Tessaro, S. |e verfasserin |4 aut | |
700 | 1 | |a Tessarotto, F. |e verfasserin |4 aut | |
700 | 1 | |a Thiel, A. |e verfasserin |4 aut | |
700 | 1 | |a Tomsa, J. |e verfasserin |4 aut | |
700 | 1 | |a Tosello, F. |e verfasserin |4 aut | |
700 | 1 | |a Townsend, A. |e verfasserin |4 aut | |
700 | 1 | |a Tskhay, V. |e verfasserin |4 aut | |
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700 | 1 | |a Zhao, Y. |e verfasserin |4 aut | |
700 | 1 | |a Ziembicki, M. |e verfasserin |4 aut | |
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10.1140/epjc/s10052-020-08740-y doi (DE-627)SPR043024343 (DE-599)SPRs10052-020-08740-y-e (SPR)s10052-020-08740-y-e DE-627 ger DE-627 rakwb eng 530 ASE 33.50 bkl Alexeev, G. D. verfasserin aut Spin density matrix elements in exclusive %$\omega %$ meson muoproduction 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. Alexeev, M. G. verfasserin aut Amoroso, A. verfasserin aut Andrieux, V. verfasserin aut Anosov, V. verfasserin aut Antoshkin, A. verfasserin aut Augsten, K. verfasserin aut Augustyniak, W. verfasserin aut Azevedo, C. D. R. verfasserin aut Badełek, B. verfasserin aut Balestra, F. verfasserin aut Ball, M. verfasserin aut Barth, J. verfasserin aut Beck, R. verfasserin aut Bedfer, Y. verfasserin aut Antequera, J. Berenguer verfasserin aut Bernhard, J. verfasserin aut Bodlak, M. verfasserin aut Bradamante, F. verfasserin aut Bressan, A. verfasserin aut Burtsev, V. E. verfasserin aut Chang, W.-C. verfasserin aut Chatterjee, C. verfasserin aut Chiosso, M. verfasserin aut Chumakov, A. G. verfasserin aut Chung, S.-U. verfasserin aut Cicuttin, A. verfasserin aut Correia, P. M. M. verfasserin aut Crespo, M. L. verfasserin aut D’Ago, D. verfasserin aut Torre, S. Dalla verfasserin aut Dasgupta, S. S. verfasserin aut Dasgupta, S. verfasserin aut Denisenko, I. verfasserin aut Denisov, O. Yu. verfasserin aut Donskov, S. V. verfasserin aut Doshita, N. verfasserin aut Dreisbach, Ch. verfasserin aut Dünnweber, W. verfasserin aut Dusaev, R. R. verfasserin aut Efremov, A. verfasserin aut Eversheim, P. D. verfasserin aut Faccioli, P. verfasserin aut Faessler, M. verfasserin aut Ferrero, A. verfasserin aut Finger, M. verfasserin aut Finger, M. verfasserin aut Fischer, H. verfasserin aut Franco, C. verfasserin aut Friedrich, J. M. verfasserin aut Frolov, V. verfasserin aut Gautheron, F. verfasserin aut Gavrichtchouk, O. P. verfasserin aut Gerassimov, S. verfasserin aut Giarra, J. verfasserin aut Gnesi, I. verfasserin aut Gorzellik, M. verfasserin aut Grasso, A. verfasserin aut Gridin, A. verfasserin aut Perdekamp, M. Grosse verfasserin aut Grube, B. verfasserin aut Guskov, A. verfasserin aut von Harrach, D. verfasserin aut Heitz, R. verfasserin aut Herrmann, F. verfasserin aut Horikawa, N. verfasserin aut d’Hose, N. verfasserin aut Hsieh, C.-Y. verfasserin aut Huber, S. verfasserin aut Ishimoto, S. verfasserin aut Ivanov, A. verfasserin aut Iwata, T. verfasserin aut Jandek, M. verfasserin aut Jary, V. verfasserin aut Jörg, P. verfasserin aut Joosten, R. verfasserin aut Kabuß, E. verfasserin aut Kaspar, F. verfasserin aut Kerbizi, A. verfasserin aut Ketzer, B. verfasserin aut Khaustov, G. V. verfasserin aut Khokhlov, Yu. A. verfasserin aut Kisselev, Yu. verfasserin aut Klein, F. verfasserin aut Koivuniemi, J. H. verfasserin aut Kolosov, V. N. verfasserin aut Horikawa, K. Kondo verfasserin aut Konorov, I. verfasserin aut Konstantinov, V. F. verfasserin aut Kotzinian, A. M. verfasserin aut Kouznetsov, O. M. verfasserin aut Koval, A. verfasserin aut Kral, Z. verfasserin aut Krinner, F. verfasserin aut Kulinich, Y. verfasserin aut Kunne, F. verfasserin aut Kurek, K. verfasserin aut Kurjata, R. P. verfasserin aut Kveton, A. verfasserin aut Lavickova, K. verfasserin aut Levorato, S. verfasserin aut Lian, Y.-S. verfasserin aut Lichtenstadt, J. verfasserin aut Lin, P.-J. verfasserin aut Longo, R. verfasserin aut Lyubovitskij, V. E. verfasserin aut Maggiora, A. verfasserin aut Magnon, A. verfasserin aut Makins, N. verfasserin aut Makke, N. verfasserin aut Mallot, G. K. verfasserin aut Maltsev, A. verfasserin aut Mamon, S. A. verfasserin aut Marianski, B. verfasserin aut Martin, A. verfasserin aut Marzec, J. verfasserin aut Matoušek, J. verfasserin aut Matsuda, T. verfasserin aut Mattson, G. verfasserin aut Meshcheryakov, G. V. verfasserin aut Meyer, M. verfasserin aut Meyer, W. verfasserin aut Mikhailov, Yu. V. verfasserin aut Mikhasenko, M. verfasserin aut Mitrofanov, E. verfasserin aut Mitrofanov, N. verfasserin aut Miyachi, Y. verfasserin aut Moretti, A. verfasserin aut Nagaytsev, A. verfasserin aut Naim, C. verfasserin aut Neyret, D. verfasserin aut Nový, J. verfasserin aut Nowak, W.-D. verfasserin aut Nukazuka, G. verfasserin aut Nunes, A. S. verfasserin aut Olshevsky, A. G. verfasserin aut Ostrick, M. verfasserin aut Panzieri, D. verfasserin aut Parsamyan, B. verfasserin aut Paul, S. verfasserin aut Pekeler, H. verfasserin aut Peng, J.-C. verfasserin aut Pešek, M. verfasserin aut Peshekhonov, D. V. verfasserin aut Pešková, M. verfasserin aut Pierre, N. verfasserin aut Platchkov, S. verfasserin aut Pochodzalla, J. verfasserin aut Polyakov, V. A. verfasserin aut Pretz, J. verfasserin aut Quaresma, M. verfasserin aut Quintans, C. verfasserin aut Regali, C. verfasserin aut Reicherz, G. verfasserin aut Riedl, C. verfasserin aut Rudnicki, T. verfasserin aut Ryabchikov, D. I. verfasserin aut Rybnikov, A. verfasserin aut Rychter, A. verfasserin aut Samoylenko, V. D. verfasserin aut Sandacz, A. verfasserin aut Sarkar, S. verfasserin aut Savin, I. A. verfasserin aut Sbrizzai, G. verfasserin aut Schmieden, H. verfasserin aut Selyunin, A. verfasserin aut Sinha, L. verfasserin aut Slunecka, M. verfasserin aut Smolik, J. verfasserin aut Srnka, A. verfasserin aut Steffen, D. verfasserin aut Stolarski, M. verfasserin aut Subrt, O. verfasserin aut Sulc, M. verfasserin aut Suzuki, H. verfasserin aut Szameitat, T. verfasserin aut Sznajder, P. verfasserin aut Tessaro, S. verfasserin aut Tessarotto, F. verfasserin aut Thiel, A. verfasserin aut Tomsa, J. verfasserin aut Tosello, F. verfasserin aut Townsend, A. verfasserin aut Tskhay, V. verfasserin aut Uhl, S. verfasserin aut Vasilishin, B. I. verfasserin aut Vauth, A. verfasserin aut Veit, B. M. verfasserin aut Veloso, J. verfasserin aut Ventura, B. verfasserin aut Vidon, A. verfasserin aut Virius, M. verfasserin aut Wagner, M. verfasserin aut Wallner, S. verfasserin aut Zaremba, K. verfasserin aut Zavada, P. verfasserin aut Zavertyaev, M. verfasserin aut Zemko, M. verfasserin aut Zemlyanichkina, E. verfasserin aut Zhao, Y. verfasserin aut Ziembicki, M. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 81(2021), 2 vom: Feb. (DE-627)253722934 (DE-600)1459069-4 1434-6052 nnns volume:81 year:2021 number:2 month:02 https://dx.doi.org/10.1140/epjc/s10052-020-08740-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2119 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 33.50 ASE AR 81 2021 2 02 |
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10.1140/epjc/s10052-020-08740-y doi (DE-627)SPR043024343 (DE-599)SPRs10052-020-08740-y-e (SPR)s10052-020-08740-y-e DE-627 ger DE-627 rakwb eng 530 ASE 33.50 bkl Alexeev, G. D. verfasserin aut Spin density matrix elements in exclusive %$\omega %$ meson muoproduction 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. Alexeev, M. G. verfasserin aut Amoroso, A. verfasserin aut Andrieux, V. verfasserin aut Anosov, V. verfasserin aut Antoshkin, A. verfasserin aut Augsten, K. verfasserin aut Augustyniak, W. verfasserin aut Azevedo, C. D. R. verfasserin aut Badełek, B. verfasserin aut Balestra, F. verfasserin aut Ball, M. verfasserin aut Barth, J. verfasserin aut Beck, R. verfasserin aut Bedfer, Y. verfasserin aut Antequera, J. Berenguer verfasserin aut Bernhard, J. verfasserin aut Bodlak, M. verfasserin aut Bradamante, F. verfasserin aut Bressan, A. verfasserin aut Burtsev, V. E. verfasserin aut Chang, W.-C. verfasserin aut Chatterjee, C. verfasserin aut Chiosso, M. verfasserin aut Chumakov, A. G. verfasserin aut Chung, S.-U. verfasserin aut Cicuttin, A. verfasserin aut Correia, P. M. M. verfasserin aut Crespo, M. L. verfasserin aut D’Ago, D. verfasserin aut Torre, S. Dalla verfasserin aut Dasgupta, S. S. verfasserin aut Dasgupta, S. verfasserin aut Denisenko, I. verfasserin aut Denisov, O. Yu. verfasserin aut Donskov, S. V. verfasserin aut Doshita, N. verfasserin aut Dreisbach, Ch. verfasserin aut Dünnweber, W. verfasserin aut Dusaev, R. R. verfasserin aut Efremov, A. verfasserin aut Eversheim, P. D. verfasserin aut Faccioli, P. verfasserin aut Faessler, M. verfasserin aut Ferrero, A. verfasserin aut Finger, M. verfasserin aut Finger, M. verfasserin aut Fischer, H. verfasserin aut Franco, C. verfasserin aut Friedrich, J. M. verfasserin aut Frolov, V. verfasserin aut Gautheron, F. verfasserin aut Gavrichtchouk, O. P. verfasserin aut Gerassimov, S. verfasserin aut Giarra, J. verfasserin aut Gnesi, I. verfasserin aut Gorzellik, M. verfasserin aut Grasso, A. verfasserin aut Gridin, A. verfasserin aut Perdekamp, M. Grosse verfasserin aut Grube, B. verfasserin aut Guskov, A. verfasserin aut von Harrach, D. verfasserin aut Heitz, R. verfasserin aut Herrmann, F. verfasserin aut Horikawa, N. verfasserin aut d’Hose, N. verfasserin aut Hsieh, C.-Y. verfasserin aut Huber, S. verfasserin aut Ishimoto, S. verfasserin aut Ivanov, A. verfasserin aut Iwata, T. verfasserin aut Jandek, M. verfasserin aut Jary, V. verfasserin aut Jörg, P. verfasserin aut Joosten, R. verfasserin aut Kabuß, E. verfasserin aut Kaspar, F. verfasserin aut Kerbizi, A. verfasserin aut Ketzer, B. verfasserin aut Khaustov, G. V. verfasserin aut Khokhlov, Yu. A. verfasserin aut Kisselev, Yu. verfasserin aut Klein, F. verfasserin aut Koivuniemi, J. H. verfasserin aut Kolosov, V. N. verfasserin aut Horikawa, K. Kondo verfasserin aut Konorov, I. verfasserin aut Konstantinov, V. F. verfasserin aut Kotzinian, A. M. verfasserin aut Kouznetsov, O. M. verfasserin aut Koval, A. verfasserin aut Kral, Z. verfasserin aut Krinner, F. verfasserin aut Kulinich, Y. verfasserin aut Kunne, F. verfasserin aut Kurek, K. verfasserin aut Kurjata, R. P. verfasserin aut Kveton, A. verfasserin aut Lavickova, K. verfasserin aut Levorato, S. verfasserin aut Lian, Y.-S. verfasserin aut Lichtenstadt, J. verfasserin aut Lin, P.-J. verfasserin aut Longo, R. verfasserin aut Lyubovitskij, V. E. verfasserin aut Maggiora, A. verfasserin aut Magnon, A. verfasserin aut Makins, N. verfasserin aut Makke, N. verfasserin aut Mallot, G. K. verfasserin aut Maltsev, A. verfasserin aut Mamon, S. A. verfasserin aut Marianski, B. verfasserin aut Martin, A. verfasserin aut Marzec, J. verfasserin aut Matoušek, J. verfasserin aut Matsuda, T. verfasserin aut Mattson, G. verfasserin aut Meshcheryakov, G. V. verfasserin aut Meyer, M. verfasserin aut Meyer, W. verfasserin aut Mikhailov, Yu. V. verfasserin aut Mikhasenko, M. verfasserin aut Mitrofanov, E. verfasserin aut Mitrofanov, N. verfasserin aut Miyachi, Y. verfasserin aut Moretti, A. verfasserin aut Nagaytsev, A. verfasserin aut Naim, C. verfasserin aut Neyret, D. verfasserin aut Nový, J. verfasserin aut Nowak, W.-D. verfasserin aut Nukazuka, G. verfasserin aut Nunes, A. S. verfasserin aut Olshevsky, A. G. verfasserin aut Ostrick, M. verfasserin aut Panzieri, D. verfasserin aut Parsamyan, B. verfasserin aut Paul, S. verfasserin aut Pekeler, H. verfasserin aut Peng, J.-C. verfasserin aut Pešek, M. verfasserin aut Peshekhonov, D. V. verfasserin aut Pešková, M. verfasserin aut Pierre, N. verfasserin aut Platchkov, S. verfasserin aut Pochodzalla, J. verfasserin aut Polyakov, V. A. verfasserin aut Pretz, J. verfasserin aut Quaresma, M. verfasserin aut Quintans, C. verfasserin aut Regali, C. verfasserin aut Reicherz, G. verfasserin aut Riedl, C. verfasserin aut Rudnicki, T. verfasserin aut Ryabchikov, D. I. verfasserin aut Rybnikov, A. verfasserin aut Rychter, A. verfasserin aut Samoylenko, V. D. verfasserin aut Sandacz, A. verfasserin aut Sarkar, S. verfasserin aut Savin, I. A. verfasserin aut Sbrizzai, G. verfasserin aut Schmieden, H. verfasserin aut Selyunin, A. verfasserin aut Sinha, L. verfasserin aut Slunecka, M. verfasserin aut Smolik, J. verfasserin aut Srnka, A. verfasserin aut Steffen, D. verfasserin aut Stolarski, M. verfasserin aut Subrt, O. verfasserin aut Sulc, M. verfasserin aut Suzuki, H. verfasserin aut Szameitat, T. verfasserin aut Sznajder, P. verfasserin aut Tessaro, S. verfasserin aut Tessarotto, F. verfasserin aut Thiel, A. verfasserin aut Tomsa, J. verfasserin aut Tosello, F. verfasserin aut Townsend, A. verfasserin aut Tskhay, V. verfasserin aut Uhl, S. verfasserin aut Vasilishin, B. I. verfasserin aut Vauth, A. verfasserin aut Veit, B. M. verfasserin aut Veloso, J. verfasserin aut Ventura, B. verfasserin aut Vidon, A. verfasserin aut Virius, M. verfasserin aut Wagner, M. verfasserin aut Wallner, S. verfasserin aut Zaremba, K. verfasserin aut Zavada, P. verfasserin aut Zavertyaev, M. verfasserin aut Zemko, M. verfasserin aut Zemlyanichkina, E. verfasserin aut Zhao, Y. verfasserin aut Ziembicki, M. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 81(2021), 2 vom: Feb. (DE-627)253722934 (DE-600)1459069-4 1434-6052 nnns volume:81 year:2021 number:2 month:02 https://dx.doi.org/10.1140/epjc/s10052-020-08740-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2119 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 33.50 ASE AR 81 2021 2 02 |
allfields_unstemmed |
10.1140/epjc/s10052-020-08740-y doi (DE-627)SPR043024343 (DE-599)SPRs10052-020-08740-y-e (SPR)s10052-020-08740-y-e DE-627 ger DE-627 rakwb eng 530 ASE 33.50 bkl Alexeev, G. D. verfasserin aut Spin density matrix elements in exclusive %$\omega %$ meson muoproduction 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. Alexeev, M. G. verfasserin aut Amoroso, A. verfasserin aut Andrieux, V. verfasserin aut Anosov, V. verfasserin aut Antoshkin, A. verfasserin aut Augsten, K. verfasserin aut Augustyniak, W. verfasserin aut Azevedo, C. D. R. verfasserin aut Badełek, B. verfasserin aut Balestra, F. verfasserin aut Ball, M. verfasserin aut Barth, J. verfasserin aut Beck, R. verfasserin aut Bedfer, Y. verfasserin aut Antequera, J. Berenguer verfasserin aut Bernhard, J. verfasserin aut Bodlak, M. verfasserin aut Bradamante, F. verfasserin aut Bressan, A. verfasserin aut Burtsev, V. E. verfasserin aut Chang, W.-C. verfasserin aut Chatterjee, C. verfasserin aut Chiosso, M. verfasserin aut Chumakov, A. G. verfasserin aut Chung, S.-U. verfasserin aut Cicuttin, A. verfasserin aut Correia, P. M. M. verfasserin aut Crespo, M. L. verfasserin aut D’Ago, D. verfasserin aut Torre, S. Dalla verfasserin aut Dasgupta, S. S. verfasserin aut Dasgupta, S. verfasserin aut Denisenko, I. verfasserin aut Denisov, O. Yu. verfasserin aut Donskov, S. V. verfasserin aut Doshita, N. verfasserin aut Dreisbach, Ch. verfasserin aut Dünnweber, W. verfasserin aut Dusaev, R. R. verfasserin aut Efremov, A. verfasserin aut Eversheim, P. D. verfasserin aut Faccioli, P. verfasserin aut Faessler, M. verfasserin aut Ferrero, A. verfasserin aut Finger, M. verfasserin aut Finger, M. verfasserin aut Fischer, H. verfasserin aut Franco, C. verfasserin aut Friedrich, J. M. verfasserin aut Frolov, V. verfasserin aut Gautheron, F. verfasserin aut Gavrichtchouk, O. P. verfasserin aut Gerassimov, S. verfasserin aut Giarra, J. verfasserin aut Gnesi, I. verfasserin aut Gorzellik, M. verfasserin aut Grasso, A. verfasserin aut Gridin, A. verfasserin aut Perdekamp, M. Grosse verfasserin aut Grube, B. verfasserin aut Guskov, A. verfasserin aut von Harrach, D. verfasserin aut Heitz, R. verfasserin aut Herrmann, F. verfasserin aut Horikawa, N. verfasserin aut d’Hose, N. verfasserin aut Hsieh, C.-Y. verfasserin aut Huber, S. verfasserin aut Ishimoto, S. verfasserin aut Ivanov, A. verfasserin aut Iwata, T. verfasserin aut Jandek, M. verfasserin aut Jary, V. verfasserin aut Jörg, P. verfasserin aut Joosten, R. verfasserin aut Kabuß, E. verfasserin aut Kaspar, F. verfasserin aut Kerbizi, A. verfasserin aut Ketzer, B. verfasserin aut Khaustov, G. V. verfasserin aut Khokhlov, Yu. A. verfasserin aut Kisselev, Yu. verfasserin aut Klein, F. verfasserin aut Koivuniemi, J. H. verfasserin aut Kolosov, V. N. verfasserin aut Horikawa, K. Kondo verfasserin aut Konorov, I. verfasserin aut Konstantinov, V. F. verfasserin aut Kotzinian, A. M. verfasserin aut Kouznetsov, O. M. verfasserin aut Koval, A. verfasserin aut Kral, Z. verfasserin aut Krinner, F. verfasserin aut Kulinich, Y. verfasserin aut Kunne, F. verfasserin aut Kurek, K. verfasserin aut Kurjata, R. P. verfasserin aut Kveton, A. verfasserin aut Lavickova, K. verfasserin aut Levorato, S. verfasserin aut Lian, Y.-S. verfasserin aut Lichtenstadt, J. verfasserin aut Lin, P.-J. verfasserin aut Longo, R. verfasserin aut Lyubovitskij, V. E. verfasserin aut Maggiora, A. verfasserin aut Magnon, A. verfasserin aut Makins, N. verfasserin aut Makke, N. verfasserin aut Mallot, G. K. verfasserin aut Maltsev, A. verfasserin aut Mamon, S. A. verfasserin aut Marianski, B. verfasserin aut Martin, A. verfasserin aut Marzec, J. verfasserin aut Matoušek, J. verfasserin aut Matsuda, T. verfasserin aut Mattson, G. verfasserin aut Meshcheryakov, G. V. verfasserin aut Meyer, M. verfasserin aut Meyer, W. verfasserin aut Mikhailov, Yu. V. verfasserin aut Mikhasenko, M. verfasserin aut Mitrofanov, E. verfasserin aut Mitrofanov, N. verfasserin aut Miyachi, Y. verfasserin aut Moretti, A. verfasserin aut Nagaytsev, A. verfasserin aut Naim, C. verfasserin aut Neyret, D. verfasserin aut Nový, J. verfasserin aut Nowak, W.-D. verfasserin aut Nukazuka, G. verfasserin aut Nunes, A. S. verfasserin aut Olshevsky, A. G. verfasserin aut Ostrick, M. verfasserin aut Panzieri, D. verfasserin aut Parsamyan, B. verfasserin aut Paul, S. verfasserin aut Pekeler, H. verfasserin aut Peng, J.-C. verfasserin aut Pešek, M. verfasserin aut Peshekhonov, D. V. verfasserin aut Pešková, M. verfasserin aut Pierre, N. verfasserin aut Platchkov, S. verfasserin aut Pochodzalla, J. verfasserin aut Polyakov, V. A. verfasserin aut Pretz, J. verfasserin aut Quaresma, M. verfasserin aut Quintans, C. verfasserin aut Regali, C. verfasserin aut Reicherz, G. verfasserin aut Riedl, C. verfasserin aut Rudnicki, T. verfasserin aut Ryabchikov, D. I. verfasserin aut Rybnikov, A. verfasserin aut Rychter, A. verfasserin aut Samoylenko, V. D. verfasserin aut Sandacz, A. verfasserin aut Sarkar, S. verfasserin aut Savin, I. A. verfasserin aut Sbrizzai, G. verfasserin aut Schmieden, H. verfasserin aut Selyunin, A. verfasserin aut Sinha, L. verfasserin aut Slunecka, M. verfasserin aut Smolik, J. verfasserin aut Srnka, A. verfasserin aut Steffen, D. verfasserin aut Stolarski, M. verfasserin aut Subrt, O. verfasserin aut Sulc, M. verfasserin aut Suzuki, H. verfasserin aut Szameitat, T. verfasserin aut Sznajder, P. verfasserin aut Tessaro, S. verfasserin aut Tessarotto, F. verfasserin aut Thiel, A. verfasserin aut Tomsa, J. verfasserin aut Tosello, F. verfasserin aut Townsend, A. verfasserin aut Tskhay, V. verfasserin aut Uhl, S. verfasserin aut Vasilishin, B. I. verfasserin aut Vauth, A. verfasserin aut Veit, B. M. verfasserin aut Veloso, J. verfasserin aut Ventura, B. verfasserin aut Vidon, A. verfasserin aut Virius, M. verfasserin aut Wagner, M. verfasserin aut Wallner, S. verfasserin aut Zaremba, K. verfasserin aut Zavada, P. verfasserin aut Zavertyaev, M. verfasserin aut Zemko, M. verfasserin aut Zemlyanichkina, E. verfasserin aut Zhao, Y. verfasserin aut Ziembicki, M. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 81(2021), 2 vom: Feb. (DE-627)253722934 (DE-600)1459069-4 1434-6052 nnns volume:81 year:2021 number:2 month:02 https://dx.doi.org/10.1140/epjc/s10052-020-08740-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2119 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 33.50 ASE AR 81 2021 2 02 |
allfieldsGer |
10.1140/epjc/s10052-020-08740-y doi (DE-627)SPR043024343 (DE-599)SPRs10052-020-08740-y-e (SPR)s10052-020-08740-y-e DE-627 ger DE-627 rakwb eng 530 ASE 33.50 bkl Alexeev, G. D. verfasserin aut Spin density matrix elements in exclusive %$\omega %$ meson muoproduction 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. Alexeev, M. G. verfasserin aut Amoroso, A. verfasserin aut Andrieux, V. verfasserin aut Anosov, V. verfasserin aut Antoshkin, A. verfasserin aut Augsten, K. verfasserin aut Augustyniak, W. verfasserin aut Azevedo, C. D. R. verfasserin aut Badełek, B. verfasserin aut Balestra, F. verfasserin aut Ball, M. verfasserin aut Barth, J. verfasserin aut Beck, R. verfasserin aut Bedfer, Y. verfasserin aut Antequera, J. Berenguer verfasserin aut Bernhard, J. verfasserin aut Bodlak, M. verfasserin aut Bradamante, F. verfasserin aut Bressan, A. verfasserin aut Burtsev, V. E. verfasserin aut Chang, W.-C. verfasserin aut Chatterjee, C. verfasserin aut Chiosso, M. verfasserin aut Chumakov, A. G. verfasserin aut Chung, S.-U. verfasserin aut Cicuttin, A. verfasserin aut Correia, P. M. M. verfasserin aut Crespo, M. L. verfasserin aut D’Ago, D. verfasserin aut Torre, S. Dalla verfasserin aut Dasgupta, S. S. verfasserin aut Dasgupta, S. verfasserin aut Denisenko, I. verfasserin aut Denisov, O. Yu. verfasserin aut Donskov, S. V. verfasserin aut Doshita, N. verfasserin aut Dreisbach, Ch. verfasserin aut Dünnweber, W. verfasserin aut Dusaev, R. R. verfasserin aut Efremov, A. verfasserin aut Eversheim, P. D. verfasserin aut Faccioli, P. verfasserin aut Faessler, M. verfasserin aut Ferrero, A. verfasserin aut Finger, M. verfasserin aut Finger, M. verfasserin aut Fischer, H. verfasserin aut Franco, C. verfasserin aut Friedrich, J. M. verfasserin aut Frolov, V. verfasserin aut Gautheron, F. verfasserin aut Gavrichtchouk, O. P. verfasserin aut Gerassimov, S. verfasserin aut Giarra, J. verfasserin aut Gnesi, I. verfasserin aut Gorzellik, M. verfasserin aut Grasso, A. verfasserin aut Gridin, A. verfasserin aut Perdekamp, M. Grosse verfasserin aut Grube, B. verfasserin aut Guskov, A. verfasserin aut von Harrach, D. verfasserin aut Heitz, R. verfasserin aut Herrmann, F. verfasserin aut Horikawa, N. verfasserin aut d’Hose, N. verfasserin aut Hsieh, C.-Y. verfasserin aut Huber, S. verfasserin aut Ishimoto, S. verfasserin aut Ivanov, A. verfasserin aut Iwata, T. verfasserin aut Jandek, M. verfasserin aut Jary, V. verfasserin aut Jörg, P. verfasserin aut Joosten, R. verfasserin aut Kabuß, E. verfasserin aut Kaspar, F. verfasserin aut Kerbizi, A. verfasserin aut Ketzer, B. verfasserin aut Khaustov, G. V. verfasserin aut Khokhlov, Yu. A. verfasserin aut Kisselev, Yu. verfasserin aut Klein, F. verfasserin aut Koivuniemi, J. H. verfasserin aut Kolosov, V. N. verfasserin aut Horikawa, K. Kondo verfasserin aut Konorov, I. verfasserin aut Konstantinov, V. F. verfasserin aut Kotzinian, A. M. verfasserin aut Kouznetsov, O. M. verfasserin aut Koval, A. verfasserin aut Kral, Z. verfasserin aut Krinner, F. verfasserin aut Kulinich, Y. verfasserin aut Kunne, F. verfasserin aut Kurek, K. verfasserin aut Kurjata, R. P. verfasserin aut Kveton, A. verfasserin aut Lavickova, K. verfasserin aut Levorato, S. verfasserin aut Lian, Y.-S. verfasserin aut Lichtenstadt, J. verfasserin aut Lin, P.-J. verfasserin aut Longo, R. verfasserin aut Lyubovitskij, V. E. verfasserin aut Maggiora, A. verfasserin aut Magnon, A. verfasserin aut Makins, N. verfasserin aut Makke, N. verfasserin aut Mallot, G. K. verfasserin aut Maltsev, A. verfasserin aut Mamon, S. A. verfasserin aut Marianski, B. verfasserin aut Martin, A. verfasserin aut Marzec, J. verfasserin aut Matoušek, J. verfasserin aut Matsuda, T. verfasserin aut Mattson, G. verfasserin aut Meshcheryakov, G. V. verfasserin aut Meyer, M. verfasserin aut Meyer, W. verfasserin aut Mikhailov, Yu. V. verfasserin aut Mikhasenko, M. verfasserin aut Mitrofanov, E. verfasserin aut Mitrofanov, N. verfasserin aut Miyachi, Y. verfasserin aut Moretti, A. verfasserin aut Nagaytsev, A. verfasserin aut Naim, C. verfasserin aut Neyret, D. verfasserin aut Nový, J. verfasserin aut Nowak, W.-D. verfasserin aut Nukazuka, G. verfasserin aut Nunes, A. S. verfasserin aut Olshevsky, A. G. verfasserin aut Ostrick, M. verfasserin aut Panzieri, D. verfasserin aut Parsamyan, B. verfasserin aut Paul, S. verfasserin aut Pekeler, H. verfasserin aut Peng, J.-C. verfasserin aut Pešek, M. verfasserin aut Peshekhonov, D. V. verfasserin aut Pešková, M. verfasserin aut Pierre, N. verfasserin aut Platchkov, S. verfasserin aut Pochodzalla, J. verfasserin aut Polyakov, V. A. verfasserin aut Pretz, J. verfasserin aut Quaresma, M. verfasserin aut Quintans, C. verfasserin aut Regali, C. verfasserin aut Reicherz, G. verfasserin aut Riedl, C. verfasserin aut Rudnicki, T. verfasserin aut Ryabchikov, D. I. verfasserin aut Rybnikov, A. verfasserin aut Rychter, A. verfasserin aut Samoylenko, V. D. verfasserin aut Sandacz, A. verfasserin aut Sarkar, S. verfasserin aut Savin, I. A. verfasserin aut Sbrizzai, G. verfasserin aut Schmieden, H. verfasserin aut Selyunin, A. verfasserin aut Sinha, L. verfasserin aut Slunecka, M. verfasserin aut Smolik, J. verfasserin aut Srnka, A. verfasserin aut Steffen, D. verfasserin aut Stolarski, M. verfasserin aut Subrt, O. verfasserin aut Sulc, M. verfasserin aut Suzuki, H. verfasserin aut Szameitat, T. verfasserin aut Sznajder, P. verfasserin aut Tessaro, S. verfasserin aut Tessarotto, F. verfasserin aut Thiel, A. verfasserin aut Tomsa, J. verfasserin aut Tosello, F. verfasserin aut Townsend, A. verfasserin aut Tskhay, V. verfasserin aut Uhl, S. verfasserin aut Vasilishin, B. I. verfasserin aut Vauth, A. verfasserin aut Veit, B. M. verfasserin aut Veloso, J. verfasserin aut Ventura, B. verfasserin aut Vidon, A. verfasserin aut Virius, M. verfasserin aut Wagner, M. verfasserin aut Wallner, S. verfasserin aut Zaremba, K. verfasserin aut Zavada, P. verfasserin aut Zavertyaev, M. verfasserin aut Zemko, M. verfasserin aut Zemlyanichkina, E. verfasserin aut Zhao, Y. verfasserin aut Ziembicki, M. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 81(2021), 2 vom: Feb. (DE-627)253722934 (DE-600)1459069-4 1434-6052 nnns volume:81 year:2021 number:2 month:02 https://dx.doi.org/10.1140/epjc/s10052-020-08740-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2119 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 33.50 ASE AR 81 2021 2 02 |
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10.1140/epjc/s10052-020-08740-y doi (DE-627)SPR043024343 (DE-599)SPRs10052-020-08740-y-e (SPR)s10052-020-08740-y-e DE-627 ger DE-627 rakwb eng 530 ASE 33.50 bkl Alexeev, G. D. verfasserin aut Spin density matrix elements in exclusive %$\omega %$ meson muoproduction 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. Alexeev, M. G. verfasserin aut Amoroso, A. verfasserin aut Andrieux, V. verfasserin aut Anosov, V. verfasserin aut Antoshkin, A. verfasserin aut Augsten, K. verfasserin aut Augustyniak, W. verfasserin aut Azevedo, C. D. R. verfasserin aut Badełek, B. verfasserin aut Balestra, F. verfasserin aut Ball, M. verfasserin aut Barth, J. verfasserin aut Beck, R. verfasserin aut Bedfer, Y. verfasserin aut Antequera, J. Berenguer verfasserin aut Bernhard, J. verfasserin aut Bodlak, M. verfasserin aut Bradamante, F. verfasserin aut Bressan, A. verfasserin aut Burtsev, V. E. verfasserin aut Chang, W.-C. verfasserin aut Chatterjee, C. verfasserin aut Chiosso, M. verfasserin aut Chumakov, A. G. verfasserin aut Chung, S.-U. verfasserin aut Cicuttin, A. verfasserin aut Correia, P. M. M. verfasserin aut Crespo, M. L. verfasserin aut D’Ago, D. verfasserin aut Torre, S. Dalla verfasserin aut Dasgupta, S. S. verfasserin aut Dasgupta, S. verfasserin aut Denisenko, I. verfasserin aut Denisov, O. Yu. verfasserin aut Donskov, S. V. verfasserin aut Doshita, N. verfasserin aut Dreisbach, Ch. verfasserin aut Dünnweber, W. verfasserin aut Dusaev, R. R. verfasserin aut Efremov, A. verfasserin aut Eversheim, P. D. verfasserin aut Faccioli, P. verfasserin aut Faessler, M. verfasserin aut Ferrero, A. verfasserin aut Finger, M. verfasserin aut Finger, M. verfasserin aut Fischer, H. verfasserin aut Franco, C. verfasserin aut Friedrich, J. M. verfasserin aut Frolov, V. verfasserin aut Gautheron, F. verfasserin aut Gavrichtchouk, O. P. verfasserin aut Gerassimov, S. verfasserin aut Giarra, J. verfasserin aut Gnesi, I. verfasserin aut Gorzellik, M. verfasserin aut Grasso, A. verfasserin aut Gridin, A. verfasserin aut Perdekamp, M. Grosse verfasserin aut Grube, B. verfasserin aut Guskov, A. verfasserin aut von Harrach, D. verfasserin aut Heitz, R. verfasserin aut Herrmann, F. verfasserin aut Horikawa, N. verfasserin aut d’Hose, N. verfasserin aut Hsieh, C.-Y. verfasserin aut Huber, S. verfasserin aut Ishimoto, S. verfasserin aut Ivanov, A. verfasserin aut Iwata, T. verfasserin aut Jandek, M. verfasserin aut Jary, V. verfasserin aut Jörg, P. verfasserin aut Joosten, R. verfasserin aut Kabuß, E. verfasserin aut Kaspar, F. verfasserin aut Kerbizi, A. verfasserin aut Ketzer, B. verfasserin aut Khaustov, G. V. verfasserin aut Khokhlov, Yu. A. verfasserin aut Kisselev, Yu. verfasserin aut Klein, F. verfasserin aut Koivuniemi, J. H. verfasserin aut Kolosov, V. N. verfasserin aut Horikawa, K. Kondo verfasserin aut Konorov, I. verfasserin aut Konstantinov, V. F. verfasserin aut Kotzinian, A. M. verfasserin aut Kouznetsov, O. M. verfasserin aut Koval, A. verfasserin aut Kral, Z. verfasserin aut Krinner, F. verfasserin aut Kulinich, Y. verfasserin aut Kunne, F. verfasserin aut Kurek, K. verfasserin aut Kurjata, R. P. verfasserin aut Kveton, A. verfasserin aut Lavickova, K. verfasserin aut Levorato, S. verfasserin aut Lian, Y.-S. verfasserin aut Lichtenstadt, J. verfasserin aut Lin, P.-J. verfasserin aut Longo, R. verfasserin aut Lyubovitskij, V. E. verfasserin aut Maggiora, A. verfasserin aut Magnon, A. verfasserin aut Makins, N. verfasserin aut Makke, N. verfasserin aut Mallot, G. K. verfasserin aut Maltsev, A. verfasserin aut Mamon, S. A. verfasserin aut Marianski, B. verfasserin aut Martin, A. verfasserin aut Marzec, J. verfasserin aut Matoušek, J. verfasserin aut Matsuda, T. verfasserin aut Mattson, G. verfasserin aut Meshcheryakov, G. V. verfasserin aut Meyer, M. verfasserin aut Meyer, W. verfasserin aut Mikhailov, Yu. V. verfasserin aut Mikhasenko, M. verfasserin aut Mitrofanov, E. verfasserin aut Mitrofanov, N. verfasserin aut Miyachi, Y. verfasserin aut Moretti, A. verfasserin aut Nagaytsev, A. verfasserin aut Naim, C. verfasserin aut Neyret, D. verfasserin aut Nový, J. verfasserin aut Nowak, W.-D. verfasserin aut Nukazuka, G. verfasserin aut Nunes, A. S. verfasserin aut Olshevsky, A. G. verfasserin aut Ostrick, M. verfasserin aut Panzieri, D. verfasserin aut Parsamyan, B. verfasserin aut Paul, S. verfasserin aut Pekeler, H. verfasserin aut Peng, J.-C. verfasserin aut Pešek, M. verfasserin aut Peshekhonov, D. V. verfasserin aut Pešková, M. verfasserin aut Pierre, N. verfasserin aut Platchkov, S. verfasserin aut Pochodzalla, J. verfasserin aut Polyakov, V. A. verfasserin aut Pretz, J. verfasserin aut Quaresma, M. verfasserin aut Quintans, C. verfasserin aut Regali, C. verfasserin aut Reicherz, G. verfasserin aut Riedl, C. verfasserin aut Rudnicki, T. verfasserin aut Ryabchikov, D. I. verfasserin aut Rybnikov, A. verfasserin aut Rychter, A. verfasserin aut Samoylenko, V. D. verfasserin aut Sandacz, A. verfasserin aut Sarkar, S. verfasserin aut Savin, I. A. verfasserin aut Sbrizzai, G. verfasserin aut Schmieden, H. verfasserin aut Selyunin, A. verfasserin aut Sinha, L. verfasserin aut Slunecka, M. verfasserin aut Smolik, J. verfasserin aut Srnka, A. verfasserin aut Steffen, D. verfasserin aut Stolarski, M. verfasserin aut Subrt, O. verfasserin aut Sulc, M. verfasserin aut Suzuki, H. verfasserin aut Szameitat, T. verfasserin aut Sznajder, P. verfasserin aut Tessaro, S. verfasserin aut Tessarotto, F. verfasserin aut Thiel, A. verfasserin aut Tomsa, J. verfasserin aut Tosello, F. verfasserin aut Townsend, A. verfasserin aut Tskhay, V. verfasserin aut Uhl, S. verfasserin aut Vasilishin, B. I. verfasserin aut Vauth, A. verfasserin aut Veit, B. M. verfasserin aut Veloso, J. verfasserin aut Ventura, B. verfasserin aut Vidon, A. verfasserin aut Virius, M. verfasserin aut Wagner, M. verfasserin aut Wallner, S. verfasserin aut Zaremba, K. verfasserin aut Zavada, P. verfasserin aut Zavertyaev, M. verfasserin aut Zemko, M. verfasserin aut Zemlyanichkina, E. verfasserin aut Zhao, Y. verfasserin aut Ziembicki, M. verfasserin aut Enthalten in The European physical journal Berlin : Springer, 1998 81(2021), 2 vom: Feb. (DE-627)253722934 (DE-600)1459069-4 1434-6052 nnns volume:81 year:2021 number:2 month:02 https://dx.doi.org/10.1140/epjc/s10052-020-08740-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_267 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2119 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 33.50 ASE AR 81 2021 2 02 |
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Alexeev, G. D. @@aut@@ Alexeev, M. G. @@aut@@ Amoroso, A. @@aut@@ Andrieux, V. @@aut@@ Anosov, V. @@aut@@ Antoshkin, A. @@aut@@ Augsten, K. @@aut@@ Augustyniak, W. @@aut@@ Azevedo, C. D. R. @@aut@@ Badełek, B. @@aut@@ Balestra, F. @@aut@@ Ball, M. @@aut@@ Barth, J. @@aut@@ Beck, R. @@aut@@ Bedfer, Y. @@aut@@ Antequera, J. Berenguer @@aut@@ Bernhard, J. @@aut@@ Bodlak, M. @@aut@@ Bradamante, F. @@aut@@ Bressan, A. @@aut@@ Burtsev, V. E. @@aut@@ Chang, W.-C. @@aut@@ Chatterjee, C. @@aut@@ Chiosso, M. @@aut@@ Chumakov, A. G. @@aut@@ Chung, S.-U. @@aut@@ Cicuttin, A. @@aut@@ Correia, P. M. M. @@aut@@ Crespo, M. L. @@aut@@ D’Ago, D. @@aut@@ Torre, S. Dalla @@aut@@ Dasgupta, S. S. @@aut@@ Dasgupta, S. @@aut@@ Denisenko, I. @@aut@@ Denisov, O. Yu. @@aut@@ Donskov, S. V. @@aut@@ Doshita, N. @@aut@@ Dreisbach, Ch. @@aut@@ Dünnweber, W. @@aut@@ Dusaev, R. R. @@aut@@ Efremov, A. @@aut@@ Eversheim, P. D. @@aut@@ Faccioli, P. @@aut@@ Faessler, M. @@aut@@ Ferrero, A. @@aut@@ Finger, M. @@aut@@ Fischer, H. @@aut@@ Franco, C. @@aut@@ Friedrich, J. M. @@aut@@ Frolov, V. @@aut@@ Gautheron, F. @@aut@@ Gavrichtchouk, O. P. @@aut@@ Gerassimov, S. @@aut@@ Giarra, J. @@aut@@ Gnesi, I. @@aut@@ Gorzellik, M. @@aut@@ Grasso, A. @@aut@@ Gridin, A. @@aut@@ Perdekamp, M. Grosse @@aut@@ Grube, B. @@aut@@ Guskov, A. @@aut@@ von Harrach, D. @@aut@@ Heitz, R. @@aut@@ Herrmann, F. @@aut@@ Horikawa, N. @@aut@@ d’Hose, N. @@aut@@ Hsieh, C.-Y. @@aut@@ Huber, S. @@aut@@ Ishimoto, S. @@aut@@ Ivanov, A. @@aut@@ Iwata, T. @@aut@@ Jandek, M. @@aut@@ Jary, V. @@aut@@ Jörg, P. @@aut@@ Joosten, R. @@aut@@ Kabuß, E. @@aut@@ Kaspar, F. @@aut@@ Kerbizi, A. @@aut@@ Ketzer, B. @@aut@@ Khaustov, G. V. @@aut@@ Khokhlov, Yu. A. @@aut@@ Kisselev, Yu. @@aut@@ Klein, F. @@aut@@ Koivuniemi, J. H. @@aut@@ Kolosov, V. N. @@aut@@ Horikawa, K. Kondo @@aut@@ Konorov, I. @@aut@@ Konstantinov, V. F. @@aut@@ Kotzinian, A. M. @@aut@@ Kouznetsov, O. M. @@aut@@ Koval, A. @@aut@@ Kral, Z. @@aut@@ Krinner, F. @@aut@@ Kulinich, Y. @@aut@@ Kunne, F. @@aut@@ Kurek, K. @@aut@@ Kurjata, R. P. @@aut@@ Kveton, A. @@aut@@ Lavickova, K. @@aut@@ Levorato, S. @@aut@@ Lian, Y.-S. @@aut@@ Lichtenstadt, J. @@aut@@ Lin, P.-J. @@aut@@ Longo, R. @@aut@@ Lyubovitskij, V. E. @@aut@@ Maggiora, A. @@aut@@ Magnon, A. @@aut@@ Makins, N. @@aut@@ Makke, N. @@aut@@ Mallot, G. K. @@aut@@ Maltsev, A. @@aut@@ Mamon, S. A. @@aut@@ Marianski, B. @@aut@@ Martin, A. @@aut@@ Marzec, J. @@aut@@ Matoušek, J. @@aut@@ Matsuda, T. @@aut@@ Mattson, G. @@aut@@ Meshcheryakov, G. V. @@aut@@ Meyer, M. @@aut@@ Meyer, W. @@aut@@ Mikhailov, Yu. V. @@aut@@ Mikhasenko, M. @@aut@@ Mitrofanov, E. @@aut@@ Mitrofanov, N. @@aut@@ Miyachi, Y. @@aut@@ Moretti, A. @@aut@@ Nagaytsev, A. @@aut@@ Naim, C. @@aut@@ Neyret, D. @@aut@@ Nový, J. @@aut@@ Nowak, W.-D. @@aut@@ Nukazuka, G. @@aut@@ Nunes, A. S. @@aut@@ Olshevsky, A. G. @@aut@@ Ostrick, M. @@aut@@ Panzieri, D. @@aut@@ Parsamyan, B. @@aut@@ Paul, S. @@aut@@ Pekeler, H. @@aut@@ Peng, J.-C. @@aut@@ Pešek, M. @@aut@@ Peshekhonov, D. V. @@aut@@ Pešková, M. @@aut@@ Pierre, N. @@aut@@ Platchkov, S. @@aut@@ Pochodzalla, J. @@aut@@ Polyakov, V. A. @@aut@@ Pretz, J. @@aut@@ Quaresma, M. @@aut@@ Quintans, C. @@aut@@ Regali, C. @@aut@@ Reicherz, G. @@aut@@ Riedl, C. @@aut@@ Rudnicki, T. @@aut@@ Ryabchikov, D. I. @@aut@@ Rybnikov, A. @@aut@@ Rychter, A. @@aut@@ Samoylenko, V. D. @@aut@@ Sandacz, A. @@aut@@ Sarkar, S. @@aut@@ Savin, I. A. @@aut@@ Sbrizzai, G. @@aut@@ Schmieden, H. @@aut@@ Selyunin, A. @@aut@@ Sinha, L. @@aut@@ Slunecka, M. @@aut@@ Smolik, J. @@aut@@ Srnka, A. @@aut@@ Steffen, D. @@aut@@ Stolarski, M. @@aut@@ Subrt, O. @@aut@@ Sulc, M. @@aut@@ Suzuki, H. @@aut@@ Szameitat, T. @@aut@@ Sznajder, P. @@aut@@ Tessaro, S. @@aut@@ Tessarotto, F. @@aut@@ Thiel, A. @@aut@@ Tomsa, J. @@aut@@ Tosello, F. @@aut@@ Townsend, A. @@aut@@ Tskhay, V. @@aut@@ Uhl, S. @@aut@@ Vasilishin, B. I. @@aut@@ Vauth, A. @@aut@@ Veit, B. M. @@aut@@ Veloso, J. @@aut@@ Ventura, B. @@aut@@ Vidon, A. @@aut@@ Virius, M. @@aut@@ Wagner, M. @@aut@@ Wallner, S. @@aut@@ Zaremba, K. @@aut@@ Zavada, P. @@aut@@ Zavertyaev, M. @@aut@@ Zemko, M. @@aut@@ Zemlyanichkina, E. @@aut@@ Zhao, Y. @@aut@@ Ziembicki, M. @@aut@@ |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR043024343</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220110202744.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">210206s2021 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1140/epjc/s10052-020-08740-y</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR043024343</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)SPRs10052-020-08740-y-e</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s10052-020-08740-y-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">530</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">33.50</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Alexeev, G. D.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Spin density matrix elements in exclusive %$\omega %$ meson muoproduction</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Alexeev, M. G.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Amoroso, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Andrieux, V.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Anosov, V.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Antoshkin, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Augsten, K.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Augustyniak, W.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Azevedo, C. D. R.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Badełek, B.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Balestra, F.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ball, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Barth, J.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Beck, R.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bedfer, Y.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Antequera, J. Berenguer</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bernhard, J.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bodlak, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bradamante, F.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bressan, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Burtsev, V. E.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chang, W.-C.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chatterjee, C.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chiosso, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chumakov, A. G.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chung, S.-U.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Cicuttin, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Correia, P. M. M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Crespo, M. 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S.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dasgupta, S.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Denisenko, I.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Denisov, O. Yu.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Donskov, S. V.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Doshita, N.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dreisbach, Ch.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dünnweber, W.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dusaev, R. 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D.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Faccioli, P.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Faessler, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ferrero, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Finger, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Finger, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fischer, H.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Franco, C.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Friedrich, J. 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P.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gerassimov, S.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Giarra, J.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gnesi, I.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gorzellik, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Grasso, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gridin, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Perdekamp, M. Grosse</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Grube, B.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Guskov, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">von Harrach, D.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Heitz, R.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Herrmann, F.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Horikawa, N.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">d’Hose, N.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hsieh, C.-Y.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Huber, S.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ishimoto, S.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ivanov, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Iwata, T.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jandek, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jary, V.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jörg, P.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Joosten, R.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kabuß, E.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kaspar, F.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kerbizi, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ketzer, B.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Khaustov, G. 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Alexeev, G. D. |
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Alexeev, G. D. ddc 530 bkl 33.50 Spin density matrix elements in exclusive %$\omega %$ meson muoproduction |
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530 ASE 33.50 bkl Spin density matrix elements in exclusive %$\omega %$ meson muoproduction |
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Spin density matrix elements in exclusive %$\omega %$ meson muoproduction |
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Spin density matrix elements in exclusive %$\omega %$ meson muoproduction |
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Alexeev, G. D. |
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Alexeev, G. D. Alexeev, M. G. Amoroso, A. Andrieux, V. Anosov, V. Antoshkin, A. Augsten, K. Augustyniak, W. Azevedo, C. D. R. Badełek, B. Balestra, F. Ball, M. Barth, J. Beck, R. Bedfer, Y. Antequera, J. Berenguer Bernhard, J. Bodlak, M. Bradamante, F. Bressan, A. Burtsev, V. E. Chang, W.-C. Chatterjee, C. Chiosso, M. Chumakov, A. G. Chung, S.-U. Cicuttin, A. Correia, P. M. M. Crespo, M. L. D’Ago, D. Torre, S. Dalla Dasgupta, S. S. Dasgupta, S. Denisenko, I. Denisov, O. Yu. Donskov, S. V. Doshita, N. Dreisbach, Ch. Dünnweber, W. Dusaev, R. R. Efremov, A. Eversheim, P. D. Faccioli, P. Faessler, M. Ferrero, A. Finger, M. Fischer, H. Franco, C. Friedrich, J. M. Frolov, V. Gautheron, F. Gavrichtchouk, O. P. Gerassimov, S. Giarra, J. Gnesi, I. Gorzellik, M. Grasso, A. Gridin, A. Perdekamp, M. Grosse Grube, B. Guskov, A. von Harrach, D. Heitz, R. Herrmann, F. Horikawa, N. d’Hose, N. Hsieh, C.-Y. Huber, S. Ishimoto, S. Ivanov, A. Iwata, T. Jandek, M. Jary, V. Jörg, P. Joosten, R. Kabuß, E. Kaspar, F. Kerbizi, A. Ketzer, B. Khaustov, G. V. Khokhlov, Yu. A. Kisselev, Yu. Klein, F. Koivuniemi, J. H. Kolosov, V. N. Horikawa, K. Kondo Konorov, I. Konstantinov, V. F. Kotzinian, A. M. Kouznetsov, O. M. Koval, A. Kral, Z. Krinner, F. Kulinich, Y. Kunne, F. Kurek, K. Kurjata, R. P. Kveton, A. Lavickova, K. Levorato, S. Lian, Y.-S. Lichtenstadt, J. Lin, P.-J. Longo, R. Lyubovitskij, V. E. Maggiora, A. Magnon, A. Makins, N. Makke, N. Mallot, G. K. Maltsev, A. Mamon, S. A. Marianski, B. Martin, A. Marzec, J. Matoušek, J. Matsuda, T. Mattson, G. Meshcheryakov, G. V. Meyer, M. Meyer, W. Mikhailov, Yu. V. Mikhasenko, M. Mitrofanov, E. Mitrofanov, N. Miyachi, Y. Moretti, A. Nagaytsev, A. Naim, C. Neyret, D. Nový, J. Nowak, W.-D. Nukazuka, G. Nunes, A. S. Olshevsky, A. G. Ostrick, M. Panzieri, D. Parsamyan, B. Paul, S. Pekeler, H. Peng, J.-C. Pešek, M. Peshekhonov, D. V. Pešková, M. Pierre, N. Platchkov, S. Pochodzalla, J. Polyakov, V. A. Pretz, J. Quaresma, M. Quintans, C. Regali, C. Reicherz, G. Riedl, C. Rudnicki, T. Ryabchikov, D. I. Rybnikov, A. Rychter, A. Samoylenko, V. D. Sandacz, A. Sarkar, S. Savin, I. A. Sbrizzai, G. Schmieden, H. Selyunin, A. Sinha, L. Slunecka, M. Smolik, J. Srnka, A. Steffen, D. Stolarski, M. Subrt, O. Sulc, M. Suzuki, H. Szameitat, T. Sznajder, P. Tessaro, S. Tessarotto, F. Thiel, A. Tomsa, J. Tosello, F. Townsend, A. Tskhay, V. Uhl, S. Vasilishin, B. I. Vauth, A. Veit, B. M. Veloso, J. Ventura, B. Vidon, A. Virius, M. Wagner, M. Wallner, S. Zaremba, K. Zavada, P. Zavertyaev, M. Zemko, M. Zemlyanichkina, E. Zhao, Y. Ziembicki, M. |
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Alexeev, G. D. |
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10.1140/epjc/s10052-020-08740-y |
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title_sort |
spin density matrix elements in exclusive %$\omega %$ meson muoproduction |
title_auth |
Spin density matrix elements in exclusive %$\omega %$ meson muoproduction |
abstract |
Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. |
abstractGer |
Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. |
abstract_unstemmed |
Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production. |
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title_short |
Spin density matrix elements in exclusive %$\omega %$ meson muoproduction |
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https://dx.doi.org/10.1140/epjc/s10052-020-08740-y |
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Alexeev, M. G. Amoroso, A. Andrieux, V. Anosov, V. Antoshkin, A. Augsten, K. Augustyniak, W. Azevedo, C. D. R. Badełek, B. Balestra, F. Ball, M. Barth, J. Beck, R. Bedfer, Y. Antequera, J. Berenguer Bernhard, J. Bodlak, M. Bradamante, F. Bressan, A. Burtsev, V. E. Chang, W.-C. Chatterjee, C. Chiosso, M. Chumakov, A. G. Chung, S.-U. Cicuttin, A. Correia, P. M. M. Crespo, M. L. D’Ago, D. Torre, S. Dalla Dasgupta, S. S. Dasgupta, S. Denisenko, I. Denisov, O. Yu Donskov, S. V. Doshita, N. Dreisbach, Ch Dünnweber, W. Dusaev, R. R. Efremov, A. Eversheim, P. D. Faccioli, P. Faessler, M. Ferrero, A. Finger, M. Fischer, H. Franco, C. Friedrich, J. M. Frolov, V. Gautheron, F. Gavrichtchouk, O. P. Gerassimov, S. Giarra, J. Gnesi, I. Gorzellik, M. Grasso, A. Gridin, A. Perdekamp, M. Grosse Grube, B. Guskov, A. von Harrach, D. Heitz, R. Herrmann, F. Horikawa, N. d’Hose, N. Hsieh, C.-Y. Huber, S. Ishimoto, S. Ivanov, A. Iwata, T. Jandek, M. Jary, V. Jörg, P. Joosten, R. Kabuß, E. Kaspar, F. Kerbizi, A. Ketzer, B. Khaustov, G. V. Khokhlov, Yu. A. Kisselev, Yu Klein, F. Koivuniemi, J. H. Kolosov, V. N. Horikawa, K. Kondo Konorov, I. Konstantinov, V. F. Kotzinian, A. M. Kouznetsov, O. M. Koval, A. Kral, Z. Krinner, F. Kulinich, Y. Kunne, F. Kurek, K. Kurjata, R. P. Kveton, A. Lavickova, K. Levorato, S. Lian, Y.-S. Lichtenstadt, J. Lin, P.-J. Longo, R. Lyubovitskij, V. E. Maggiora, A. Magnon, A. Makins, N. Makke, N. Mallot, G. K. Maltsev, A. Mamon, S. A. Marianski, B. Martin, A. Marzec, J. Matoušek, J. Matsuda, T. Mattson, G. Meshcheryakov, G. V. Meyer, M. Meyer, W. Mikhailov, Yu. V. Mikhasenko, M. Mitrofanov, E. Mitrofanov, N. Miyachi, Y. Moretti, A. Nagaytsev, A. Naim, C. Neyret, D. Nový, J. Nowak, W.-D. Nukazuka, G. Nunes, A. S. Olshevsky, A. G. Ostrick, M. Panzieri, D. Parsamyan, B. Paul, S. Pekeler, H. Peng, J.-C. Pešek, M. Peshekhonov, D. V. Pešková, M. Pierre, N. Platchkov, S. Pochodzalla, J. Polyakov, V. A. Pretz, J. Quaresma, M. Quintans, C. Regali, C. Reicherz, G. Riedl, C. Rudnicki, T. Ryabchikov, D. I. Rybnikov, A. Rychter, A. Samoylenko, V. D. Sandacz, A. Sarkar, S. Savin, I. A. Sbrizzai, G. Schmieden, H. Selyunin, A. Sinha, L. Slunecka, M. Smolik, J. Srnka, A. Steffen, D. Stolarski, M. Subrt, O. Sulc, M. Suzuki, H. Szameitat, T. Sznajder, P. Tessaro, S. Tessarotto, F. Thiel, A. Tomsa, J. Tosello, F. Townsend, A. Tskhay, V. Uhl, S. Vasilishin, B. I. Vauth, A. Veit, B. M. Veloso, J. Ventura, B. Vidon, A. Virius, M. Wagner, M. Wallner, S. Zaremba, K. Zavada, P. Zavertyaev, M. Zemko, M. Zemlyanichkina, E. Zhao, Y. Ziembicki, M. |
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Alexeev, M. G. Amoroso, A. Andrieux, V. Anosov, V. Antoshkin, A. Augsten, K. Augustyniak, W. Azevedo, C. D. R. Badełek, B. Balestra, F. Ball, M. Barth, J. Beck, R. Bedfer, Y. Antequera, J. Berenguer Bernhard, J. Bodlak, M. Bradamante, F. Bressan, A. Burtsev, V. E. Chang, W.-C. Chatterjee, C. Chiosso, M. Chumakov, A. G. Chung, S.-U. Cicuttin, A. Correia, P. M. M. Crespo, M. L. D’Ago, D. Torre, S. Dalla Dasgupta, S. S. Dasgupta, S. Denisenko, I. Denisov, O. Yu Donskov, S. V. Doshita, N. Dreisbach, Ch Dünnweber, W. Dusaev, R. R. Efremov, A. Eversheim, P. D. Faccioli, P. Faessler, M. Ferrero, A. Finger, M. Fischer, H. Franco, C. Friedrich, J. M. Frolov, V. Gautheron, F. Gavrichtchouk, O. P. Gerassimov, S. Giarra, J. Gnesi, I. Gorzellik, M. Grasso, A. Gridin, A. Perdekamp, M. Grosse Grube, B. Guskov, A. von Harrach, D. Heitz, R. Herrmann, F. Horikawa, N. d’Hose, N. Hsieh, C.-Y. Huber, S. Ishimoto, S. Ivanov, A. Iwata, T. Jandek, M. Jary, V. Jörg, P. Joosten, R. Kabuß, E. Kaspar, F. Kerbizi, A. Ketzer, B. Khaustov, G. V. Khokhlov, Yu. A. Kisselev, Yu Klein, F. Koivuniemi, J. H. Kolosov, V. N. Horikawa, K. Kondo Konorov, I. Konstantinov, V. F. Kotzinian, A. M. Kouznetsov, O. M. Koval, A. Kral, Z. Krinner, F. Kulinich, Y. Kunne, F. Kurek, K. Kurjata, R. P. Kveton, A. Lavickova, K. Levorato, S. Lian, Y.-S. Lichtenstadt, J. Lin, P.-J. Longo, R. Lyubovitskij, V. E. Maggiora, A. Magnon, A. Makins, N. Makke, N. Mallot, G. K. Maltsev, A. Mamon, S. A. Marianski, B. Martin, A. Marzec, J. Matoušek, J. Matsuda, T. Mattson, G. Meshcheryakov, G. V. Meyer, M. Meyer, W. Mikhailov, Yu. V. Mikhasenko, M. Mitrofanov, E. Mitrofanov, N. Miyachi, Y. Moretti, A. Nagaytsev, A. Naim, C. Neyret, D. Nový, J. Nowak, W.-D. Nukazuka, G. Nunes, A. S. Olshevsky, A. G. Ostrick, M. Panzieri, D. Parsamyan, B. Paul, S. Pekeler, H. Peng, J.-C. Pešek, M. Peshekhonov, D. V. Pešková, M. Pierre, N. Platchkov, S. Pochodzalla, J. Polyakov, V. A. Pretz, J. Quaresma, M. Quintans, C. Regali, C. Reicherz, G. Riedl, C. Rudnicki, T. Ryabchikov, D. I. Rybnikov, A. Rychter, A. Samoylenko, V. D. Sandacz, A. Sarkar, S. Savin, I. A. Sbrizzai, G. Schmieden, H. Selyunin, A. Sinha, L. Slunecka, M. Smolik, J. Srnka, A. Steffen, D. Stolarski, M. Subrt, O. Sulc, M. Suzuki, H. Szameitat, T. Sznajder, P. Tessaro, S. Tessarotto, F. Thiel, A. Tomsa, J. Tosello, F. Townsend, A. Tskhay, V. Uhl, S. Vasilishin, B. I. Vauth, A. Veit, B. M. Veloso, J. Ventura, B. Vidon, A. Virius, M. Wagner, M. Wallner, S. Zaremba, K. Zavada, P. Zavertyaev, M. Zemko, M. Zemlyanichkina, E. Zhao, Y. Ziembicki, M. |
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doi_str |
10.1140/epjc/s10052-020-08740-y |
up_date |
2024-07-03T16:12:43.223Z |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR043024343</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220110202744.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">210206s2021 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1140/epjc/s10052-020-08740-y</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR043024343</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)SPRs10052-020-08740-y-e</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s10052-020-08740-y-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">530</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">33.50</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Alexeev, G. D.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Spin density matrix elements in exclusive %$\omega %$ meson muoproduction</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive %$\omega %$ meson muoproduction on the proton at COMPASS using 160 GeV/c polarised %$ \mu ^{+}%$ and %$ \mu ^{-}%$ beams impinging on a liquid hydrogen target. The measurement covers the range 5.0 GeV/%$c^2%%%$< W<%$ 17.0 GeV/%$c^2%$, with the average kinematics %$\langle Q^{2} \rangle =%$ 2.1 (GeV/c)%$^2%$, %$\langle W \rangle = 7.6%$ GeV/%$c^2%$, and %$\langle p^{2}_{\mathrm{T}} \rangle = 0.16%$ (GeV/c)%$^2%$. Here, %$Q^2%$ denotes the virtuality of the exchanged photon, W the mass of the final hadronic system and %$p_T%$ the transverse momentum of the %$\omega %$ meson with respect to the virtual-photon direction. The measured non-zero SDMEs for the transitions of transversely polarised virtual photons to longitudinally polarised vector mesons (%$\gamma ^*_T \rightarrow V_L%$) indicate a violation of s-channel helicity conservation. Additionally, we observe a sizeable contribution of unnatural-parity-exchange (UPE) transitions that decreases with increasing W. The results provide important input for modelling Generalised Parton Distributions (GPDs). In particular, they may allow to evaluate in a model-dependent way the contribution of UPE transitions and assess the role of parton helicity-flip GPDs in exclusive %$\omega %$ production.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Alexeev, M. 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7.401102 |