Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium
Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Huber, G. M [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2014 |
|---|
| Schlagwörter: |
|---|
| Systematik: |
|
|---|
| Übergeordnetes Werk: |
Enthalten in: Physical review / C - Woodbury, NY : Inst., 1970, (2014) |
|---|---|
| Übergeordnetes Werk: |
year:2014 |
| Links: |
|---|
| DOI / URN: |
10.1103/PhysRevC.91.015202 |
|---|
| Katalog-ID: |
OLC1966212046 |
|---|
| LEADER | 01000caa a2200265 4500 | ||
|---|---|---|---|
| 001 | OLC1966212046 | ||
| 003 | DE-627 | ||
| 005 | 20220222183557.0 | ||
| 007 | tu | ||
| 008 | 160206s2014 xx ||||| 00| ||eng c | ||
| 024 | 7 | |a 10.1103/PhysRevC.91.015202 |2 doi | |
| 028 | 5 | 2 | |a PQ20160617 |
| 035 | |a (DE-627)OLC1966212046 | ||
| 035 | |a (DE-599)GBVOLC1966212046 | ||
| 035 | |a (PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0 | ||
| 035 | |a (KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 082 | 0 | 4 | |a 530 |q DNB |
| 084 | |a UA 6500. |q AVZ |2 rvk | ||
| 100 | 1 | |a Huber, G. M |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium |
| 264 | 1 | |c 2014 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 520 | |a Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. | ||
| 650 | 4 | |a Nuclear Experiment | |
| 700 | 1 | |a Blok, H. P |4 oth | |
| 700 | 1 | |a Butuceanu, C |4 oth | |
| 700 | 1 | |a Gaskell, D |4 oth | |
| 700 | 1 | |a Horn, T |4 oth | |
| 700 | 1 | |a Mack, D. J |4 oth | |
| 700 | 1 | |a Abbott, D |4 oth | |
| 700 | 1 | |a Aniol, K |4 oth | |
| 700 | 1 | |a Anklin, H |4 oth | |
| 700 | 1 | |a Armstrong, C |4 oth | |
| 700 | 1 | |a Arrington, J |4 oth | |
| 700 | 1 | |a Assamagan, K |4 oth | |
| 700 | 1 | |a Avery, S |4 oth | |
| 700 | 1 | |a Baker, O. K |4 oth | |
| 700 | 1 | |a Barrett, B |4 oth | |
| 700 | 1 | |a Beise, E. J |4 oth | |
| 700 | 1 | |a Bochna, C |4 oth | |
| 700 | 1 | |a Boeglin, W |4 oth | |
| 700 | 1 | |a Brash, E. J |4 oth | |
| 700 | 1 | |a Breuer, H |4 oth | |
| 700 | 1 | |a Chang, C. C |4 oth | |
| 700 | 1 | |a Chant, N |4 oth | |
| 700 | 1 | |a Christy, M. E |4 oth | |
| 700 | 1 | |a Dunne, J |4 oth | |
| 700 | 1 | |a Eden, T |4 oth | |
| 700 | 1 | |a Ent, R |4 oth | |
| 700 | 1 | |a Fenker, H |4 oth | |
| 700 | 1 | |a Gibson, E. F |4 oth | |
| 700 | 1 | |a Gilman, R |4 oth | |
| 700 | 1 | |a Gustafsson, K |4 oth | |
| 700 | 1 | |a Hinton, W |4 oth | |
| 700 | 1 | |a Holt, R. J |4 oth | |
| 700 | 1 | |a Jackson, H |4 oth | |
| 700 | 1 | |a Jin, S |4 oth | |
| 700 | 1 | |a Jones, M. K |4 oth | |
| 700 | 1 | |a Keppel, C. E |4 oth | |
| 700 | 1 | |a Kim, P. H |4 oth | |
| 700 | 1 | |a Kim, W |4 oth | |
| 700 | 1 | |a King, P. M |4 oth | |
| 700 | 1 | |a Klein, A |4 oth | |
| 700 | 1 | |a Koltenuk, D |4 oth | |
| 700 | 1 | |a Kovaltchouk, V |4 oth | |
| 700 | 1 | |a Liang, M |4 oth | |
| 700 | 1 | |a Liu, J |4 oth | |
| 700 | 1 | |a Lolos, G. J |4 oth | |
| 700 | 1 | |a Lung, A |4 oth | |
| 700 | 1 | |a Margaziotis, D. J |4 oth | |
| 700 | 1 | |a Markowitz, P |4 oth | |
| 700 | 1 | |a Matsumura, A |4 oth | |
| 700 | 1 | |a McKee, D |4 oth | |
| 700 | 1 | |a Meekins, D |4 oth | |
| 700 | 1 | |a Mitchell, J |4 oth | |
| 700 | 1 | |a Miyoshi, T |4 oth | |
| 700 | 1 | |a Mkrtchyan, H |4 oth | |
| 700 | 1 | |a Mueller, B |4 oth | |
| 700 | 1 | |a Niculescu, G |4 oth | |
| 700 | 1 | |a Niculescu, I |4 oth | |
| 700 | 1 | |a Okayasu, Y |4 oth | |
| 700 | 1 | |a Pentchev, L |4 oth | |
| 700 | 1 | |a Perdrisat, C |4 oth | |
| 700 | 1 | |a Pitz, D |4 oth | |
| 700 | 1 | |a Potterveld, D |4 oth | |
| 700 | 1 | |a Punjabi, V |4 oth | |
| 700 | 1 | |a Qin, L. M |4 oth | |
| 700 | 1 | |a Reimer, P. E |4 oth | |
| 700 | 1 | |a Reinhold, J |4 oth | |
| 700 | 1 | |a Roche, J |4 oth | |
| 700 | 1 | |a Roos, P. G |4 oth | |
| 700 | 1 | |a Sarty, A |4 oth | |
| 700 | 1 | |a Shin, I. K |4 oth | |
| 700 | 1 | |a Smith, G. R |4 oth | |
| 700 | 1 | |a Stepanyan, S |4 oth | |
| 700 | 1 | |a Tang, L. G |4 oth | |
| 700 | 1 | |a Tadevosyan, V |4 oth | |
| 700 | 1 | |a Tvaskis, V |4 oth | |
| 700 | 1 | |a van der Meer, R. L. J |4 oth | |
| 700 | 1 | |a Vansyoc, K |4 oth | |
| 700 | 1 | |a Van Westrum, D |4 oth | |
| 700 | 1 | |a Vidakovic, S |4 oth | |
| 700 | 1 | |a Volmer, J |4 oth | |
| 700 | 1 | |a Vulcan, W |4 oth | |
| 700 | 1 | |a Warren, G |4 oth | |
| 700 | 1 | |a Wood, S. A |4 oth | |
| 700 | 1 | |a Xu, C |4 oth | |
| 700 | 1 | |a Yan, C |4 oth | |
| 700 | 1 | |a Zhao, W. -X |4 oth | |
| 700 | 1 | |a Zheng, X |4 oth | |
| 700 | 1 | |a Zihlmann, B |4 oth | |
| 700 | 1 | |a Collaboration, The Jefferson Lab Fpi |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |t Physical review / C |d Woodbury, NY : Inst., 1970 |g (2014) |w (DE-627)129508659 |w (DE-600)209771-0 |w (DE-576)01491493X |x 2469-9985 |7 nnns |
| 773 | 1 | 8 | |g year:2014 |
| 856 | 4 | 1 | |u http://dx.doi.org/10.1103/PhysRevC.91.015202 |3 Volltext |
| 856 | 4 | 2 | |u http://arxiv.org/abs/1412.5140 |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a SYSFLAG_A | ||
| 912 | |a GBV_OLC | ||
| 912 | |a SSG-OLC-PHY | ||
| 912 | |a SSG-OPC-AST | ||
| 912 | |a GBV_ILN_21 | ||
| 912 | |a GBV_ILN_40 | ||
| 912 | |a GBV_ILN_70 | ||
| 912 | |a GBV_ILN_2279 | ||
| 936 | r | v | |a UA 6500. |
| 951 | |a AR | ||
| 952 | |j 2014 | ||
| author_variant |
g m h gm gmh |
|---|---|
| matchkey_str |
article:24699985:2014----::eaaersosfntosnxlsvfradimlcrp |
| hierarchy_sort_str |
2014 |
| publishDate |
2014 |
| allfields |
10.1103/PhysRevC.91.015202 doi PQ20160617 (DE-627)OLC1966212046 (DE-599)GBVOLC1966212046 (PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0 (KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel DE-627 ger DE-627 rakwb eng 530 DNB UA 6500. AVZ rvk Huber, G. M verfasserin aut Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium 2014 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. Nuclear Experiment Blok, H. P oth Butuceanu, C oth Gaskell, D oth Horn, T oth Mack, D. J oth Abbott, D oth Aniol, K oth Anklin, H oth Armstrong, C oth Arrington, J oth Assamagan, K oth Avery, S oth Baker, O. K oth Barrett, B oth Beise, E. J oth Bochna, C oth Boeglin, W oth Brash, E. J oth Breuer, H oth Chang, C. C oth Chant, N oth Christy, M. E oth Dunne, J oth Eden, T oth Ent, R oth Fenker, H oth Gibson, E. F oth Gilman, R oth Gustafsson, K oth Hinton, W oth Holt, R. J oth Jackson, H oth Jin, S oth Jones, M. K oth Keppel, C. E oth Kim, P. H oth Kim, W oth King, P. M oth Klein, A oth Koltenuk, D oth Kovaltchouk, V oth Liang, M oth Liu, J oth Lolos, G. J oth Lung, A oth Margaziotis, D. J oth Markowitz, P oth Matsumura, A oth McKee, D oth Meekins, D oth Mitchell, J oth Miyoshi, T oth Mkrtchyan, H oth Mueller, B oth Niculescu, G oth Niculescu, I oth Okayasu, Y oth Pentchev, L oth Perdrisat, C oth Pitz, D oth Potterveld, D oth Punjabi, V oth Qin, L. M oth Reimer, P. E oth Reinhold, J oth Roche, J oth Roos, P. G oth Sarty, A oth Shin, I. K oth Smith, G. R oth Stepanyan, S oth Tang, L. G oth Tadevosyan, V oth Tvaskis, V oth van der Meer, R. L. J oth Vansyoc, K oth Van Westrum, D oth Vidakovic, S oth Volmer, J oth Vulcan, W oth Warren, G oth Wood, S. A oth Xu, C oth Yan, C oth Zhao, W. -X oth Zheng, X oth Zihlmann, B oth Collaboration, The Jefferson Lab Fpi oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 (2014) (DE-627)129508659 (DE-600)209771-0 (DE-576)01491493X 2469-9985 nnns year:2014 http://dx.doi.org/10.1103/PhysRevC.91.015202 Volltext http://arxiv.org/abs/1412.5140 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OPC-AST GBV_ILN_21 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2279 UA 6500. AR 2014 |
| spelling |
10.1103/PhysRevC.91.015202 doi PQ20160617 (DE-627)OLC1966212046 (DE-599)GBVOLC1966212046 (PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0 (KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel DE-627 ger DE-627 rakwb eng 530 DNB UA 6500. AVZ rvk Huber, G. M verfasserin aut Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium 2014 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. Nuclear Experiment Blok, H. P oth Butuceanu, C oth Gaskell, D oth Horn, T oth Mack, D. J oth Abbott, D oth Aniol, K oth Anklin, H oth Armstrong, C oth Arrington, J oth Assamagan, K oth Avery, S oth Baker, O. K oth Barrett, B oth Beise, E. J oth Bochna, C oth Boeglin, W oth Brash, E. J oth Breuer, H oth Chang, C. C oth Chant, N oth Christy, M. E oth Dunne, J oth Eden, T oth Ent, R oth Fenker, H oth Gibson, E. F oth Gilman, R oth Gustafsson, K oth Hinton, W oth Holt, R. J oth Jackson, H oth Jin, S oth Jones, M. K oth Keppel, C. E oth Kim, P. H oth Kim, W oth King, P. M oth Klein, A oth Koltenuk, D oth Kovaltchouk, V oth Liang, M oth Liu, J oth Lolos, G. J oth Lung, A oth Margaziotis, D. J oth Markowitz, P oth Matsumura, A oth McKee, D oth Meekins, D oth Mitchell, J oth Miyoshi, T oth Mkrtchyan, H oth Mueller, B oth Niculescu, G oth Niculescu, I oth Okayasu, Y oth Pentchev, L oth Perdrisat, C oth Pitz, D oth Potterveld, D oth Punjabi, V oth Qin, L. M oth Reimer, P. E oth Reinhold, J oth Roche, J oth Roos, P. G oth Sarty, A oth Shin, I. K oth Smith, G. R oth Stepanyan, S oth Tang, L. G oth Tadevosyan, V oth Tvaskis, V oth van der Meer, R. L. J oth Vansyoc, K oth Van Westrum, D oth Vidakovic, S oth Volmer, J oth Vulcan, W oth Warren, G oth Wood, S. A oth Xu, C oth Yan, C oth Zhao, W. -X oth Zheng, X oth Zihlmann, B oth Collaboration, The Jefferson Lab Fpi oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 (2014) (DE-627)129508659 (DE-600)209771-0 (DE-576)01491493X 2469-9985 nnns year:2014 http://dx.doi.org/10.1103/PhysRevC.91.015202 Volltext http://arxiv.org/abs/1412.5140 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OPC-AST GBV_ILN_21 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2279 UA 6500. AR 2014 |
| allfields_unstemmed |
10.1103/PhysRevC.91.015202 doi PQ20160617 (DE-627)OLC1966212046 (DE-599)GBVOLC1966212046 (PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0 (KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel DE-627 ger DE-627 rakwb eng 530 DNB UA 6500. AVZ rvk Huber, G. M verfasserin aut Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium 2014 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. Nuclear Experiment Blok, H. P oth Butuceanu, C oth Gaskell, D oth Horn, T oth Mack, D. J oth Abbott, D oth Aniol, K oth Anklin, H oth Armstrong, C oth Arrington, J oth Assamagan, K oth Avery, S oth Baker, O. K oth Barrett, B oth Beise, E. J oth Bochna, C oth Boeglin, W oth Brash, E. J oth Breuer, H oth Chang, C. C oth Chant, N oth Christy, M. E oth Dunne, J oth Eden, T oth Ent, R oth Fenker, H oth Gibson, E. F oth Gilman, R oth Gustafsson, K oth Hinton, W oth Holt, R. J oth Jackson, H oth Jin, S oth Jones, M. K oth Keppel, C. E oth Kim, P. H oth Kim, W oth King, P. M oth Klein, A oth Koltenuk, D oth Kovaltchouk, V oth Liang, M oth Liu, J oth Lolos, G. J oth Lung, A oth Margaziotis, D. J oth Markowitz, P oth Matsumura, A oth McKee, D oth Meekins, D oth Mitchell, J oth Miyoshi, T oth Mkrtchyan, H oth Mueller, B oth Niculescu, G oth Niculescu, I oth Okayasu, Y oth Pentchev, L oth Perdrisat, C oth Pitz, D oth Potterveld, D oth Punjabi, V oth Qin, L. M oth Reimer, P. E oth Reinhold, J oth Roche, J oth Roos, P. G oth Sarty, A oth Shin, I. K oth Smith, G. R oth Stepanyan, S oth Tang, L. G oth Tadevosyan, V oth Tvaskis, V oth van der Meer, R. L. J oth Vansyoc, K oth Van Westrum, D oth Vidakovic, S oth Volmer, J oth Vulcan, W oth Warren, G oth Wood, S. A oth Xu, C oth Yan, C oth Zhao, W. -X oth Zheng, X oth Zihlmann, B oth Collaboration, The Jefferson Lab Fpi oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 (2014) (DE-627)129508659 (DE-600)209771-0 (DE-576)01491493X 2469-9985 nnns year:2014 http://dx.doi.org/10.1103/PhysRevC.91.015202 Volltext http://arxiv.org/abs/1412.5140 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OPC-AST GBV_ILN_21 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2279 UA 6500. AR 2014 |
| allfieldsGer |
10.1103/PhysRevC.91.015202 doi PQ20160617 (DE-627)OLC1966212046 (DE-599)GBVOLC1966212046 (PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0 (KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel DE-627 ger DE-627 rakwb eng 530 DNB UA 6500. AVZ rvk Huber, G. M verfasserin aut Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium 2014 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. Nuclear Experiment Blok, H. P oth Butuceanu, C oth Gaskell, D oth Horn, T oth Mack, D. J oth Abbott, D oth Aniol, K oth Anklin, H oth Armstrong, C oth Arrington, J oth Assamagan, K oth Avery, S oth Baker, O. K oth Barrett, B oth Beise, E. J oth Bochna, C oth Boeglin, W oth Brash, E. J oth Breuer, H oth Chang, C. C oth Chant, N oth Christy, M. E oth Dunne, J oth Eden, T oth Ent, R oth Fenker, H oth Gibson, E. F oth Gilman, R oth Gustafsson, K oth Hinton, W oth Holt, R. J oth Jackson, H oth Jin, S oth Jones, M. K oth Keppel, C. E oth Kim, P. H oth Kim, W oth King, P. M oth Klein, A oth Koltenuk, D oth Kovaltchouk, V oth Liang, M oth Liu, J oth Lolos, G. J oth Lung, A oth Margaziotis, D. J oth Markowitz, P oth Matsumura, A oth McKee, D oth Meekins, D oth Mitchell, J oth Miyoshi, T oth Mkrtchyan, H oth Mueller, B oth Niculescu, G oth Niculescu, I oth Okayasu, Y oth Pentchev, L oth Perdrisat, C oth Pitz, D oth Potterveld, D oth Punjabi, V oth Qin, L. M oth Reimer, P. E oth Reinhold, J oth Roche, J oth Roos, P. G oth Sarty, A oth Shin, I. K oth Smith, G. R oth Stepanyan, S oth Tang, L. G oth Tadevosyan, V oth Tvaskis, V oth van der Meer, R. L. J oth Vansyoc, K oth Van Westrum, D oth Vidakovic, S oth Volmer, J oth Vulcan, W oth Warren, G oth Wood, S. A oth Xu, C oth Yan, C oth Zhao, W. -X oth Zheng, X oth Zihlmann, B oth Collaboration, The Jefferson Lab Fpi oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 (2014) (DE-627)129508659 (DE-600)209771-0 (DE-576)01491493X 2469-9985 nnns year:2014 http://dx.doi.org/10.1103/PhysRevC.91.015202 Volltext http://arxiv.org/abs/1412.5140 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OPC-AST GBV_ILN_21 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2279 UA 6500. AR 2014 |
| allfieldsSound |
10.1103/PhysRevC.91.015202 doi PQ20160617 (DE-627)OLC1966212046 (DE-599)GBVOLC1966212046 (PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0 (KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel DE-627 ger DE-627 rakwb eng 530 DNB UA 6500. AVZ rvk Huber, G. M verfasserin aut Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium 2014 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. Nuclear Experiment Blok, H. P oth Butuceanu, C oth Gaskell, D oth Horn, T oth Mack, D. J oth Abbott, D oth Aniol, K oth Anklin, H oth Armstrong, C oth Arrington, J oth Assamagan, K oth Avery, S oth Baker, O. K oth Barrett, B oth Beise, E. J oth Bochna, C oth Boeglin, W oth Brash, E. J oth Breuer, H oth Chang, C. C oth Chant, N oth Christy, M. E oth Dunne, J oth Eden, T oth Ent, R oth Fenker, H oth Gibson, E. F oth Gilman, R oth Gustafsson, K oth Hinton, W oth Holt, R. J oth Jackson, H oth Jin, S oth Jones, M. K oth Keppel, C. E oth Kim, P. H oth Kim, W oth King, P. M oth Klein, A oth Koltenuk, D oth Kovaltchouk, V oth Liang, M oth Liu, J oth Lolos, G. J oth Lung, A oth Margaziotis, D. J oth Markowitz, P oth Matsumura, A oth McKee, D oth Meekins, D oth Mitchell, J oth Miyoshi, T oth Mkrtchyan, H oth Mueller, B oth Niculescu, G oth Niculescu, I oth Okayasu, Y oth Pentchev, L oth Perdrisat, C oth Pitz, D oth Potterveld, D oth Punjabi, V oth Qin, L. M oth Reimer, P. E oth Reinhold, J oth Roche, J oth Roos, P. G oth Sarty, A oth Shin, I. K oth Smith, G. R oth Stepanyan, S oth Tang, L. G oth Tadevosyan, V oth Tvaskis, V oth van der Meer, R. L. J oth Vansyoc, K oth Van Westrum, D oth Vidakovic, S oth Volmer, J oth Vulcan, W oth Warren, G oth Wood, S. A oth Xu, C oth Yan, C oth Zhao, W. -X oth Zheng, X oth Zihlmann, B oth Collaboration, The Jefferson Lab Fpi oth Enthalten in Physical review / C Woodbury, NY : Inst., 1970 (2014) (DE-627)129508659 (DE-600)209771-0 (DE-576)01491493X 2469-9985 nnns year:2014 http://dx.doi.org/10.1103/PhysRevC.91.015202 Volltext http://arxiv.org/abs/1412.5140 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OPC-AST GBV_ILN_21 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2279 UA 6500. AR 2014 |
| language |
English |
| source |
Enthalten in Physical review / C (2014) year:2014 |
| sourceStr |
Enthalten in Physical review / C (2014) year:2014 |
| format_phy_str_mv |
Article |
| institution |
findex.gbv.de |
| topic_facet |
Nuclear Experiment |
| dewey-raw |
530 |
| isfreeaccess_bool |
false |
| container_title |
Physical review / C |
| authorswithroles_txt_mv |
Huber, G. M @@aut@@ Blok, H. P @@oth@@ Butuceanu, C @@oth@@ Gaskell, D @@oth@@ Horn, T @@oth@@ Mack, D. J @@oth@@ Abbott, D @@oth@@ Aniol, K @@oth@@ Anklin, H @@oth@@ Armstrong, C @@oth@@ Arrington, J @@oth@@ Assamagan, K @@oth@@ Avery, S @@oth@@ Baker, O. K @@oth@@ Barrett, B @@oth@@ Beise, E. J @@oth@@ Bochna, C @@oth@@ Boeglin, W @@oth@@ Brash, E. J @@oth@@ Breuer, H @@oth@@ Chang, C. C @@oth@@ Chant, N @@oth@@ Christy, M. E @@oth@@ Dunne, J @@oth@@ Eden, T @@oth@@ Ent, R @@oth@@ Fenker, H @@oth@@ Gibson, E. F @@oth@@ Gilman, R @@oth@@ Gustafsson, K @@oth@@ Hinton, W @@oth@@ Holt, R. J @@oth@@ Jackson, H @@oth@@ Jin, S @@oth@@ Jones, M. K @@oth@@ Keppel, C. E @@oth@@ Kim, P. H @@oth@@ Kim, W @@oth@@ King, P. M @@oth@@ Klein, A @@oth@@ Koltenuk, D @@oth@@ Kovaltchouk, V @@oth@@ Liang, M @@oth@@ Liu, J @@oth@@ Lolos, G. J @@oth@@ Lung, A @@oth@@ Margaziotis, D. J @@oth@@ Markowitz, P @@oth@@ Matsumura, A @@oth@@ McKee, D @@oth@@ Meekins, D @@oth@@ Mitchell, J @@oth@@ Miyoshi, T @@oth@@ Mkrtchyan, H @@oth@@ Mueller, B @@oth@@ Niculescu, G @@oth@@ Niculescu, I @@oth@@ Okayasu, Y @@oth@@ Pentchev, L @@oth@@ Perdrisat, C @@oth@@ Pitz, D @@oth@@ Potterveld, D @@oth@@ Punjabi, V @@oth@@ Qin, L. M @@oth@@ Reimer, P. E @@oth@@ Reinhold, J @@oth@@ Roche, J @@oth@@ Roos, P. G @@oth@@ Sarty, A @@oth@@ Shin, I. K @@oth@@ Smith, G. R @@oth@@ Stepanyan, S @@oth@@ Tang, L. G @@oth@@ Tadevosyan, V @@oth@@ Tvaskis, V @@oth@@ van der Meer, R. L. J @@oth@@ Vansyoc, K @@oth@@ Van Westrum, D @@oth@@ Vidakovic, S @@oth@@ Volmer, J @@oth@@ Vulcan, W @@oth@@ Warren, G @@oth@@ Wood, S. A @@oth@@ Xu, C @@oth@@ Yan, C @@oth@@ Zhao, W. -X @@oth@@ Zheng, X @@oth@@ Zihlmann, B @@oth@@ Collaboration, The Jefferson Lab Fpi @@oth@@ |
| publishDateDaySort_date |
2014-01-01T00:00:00Z |
| hierarchy_top_id |
129508659 |
| dewey-sort |
3530 |
| id |
OLC1966212046 |
| language_de |
englisch |
| fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC1966212046</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220222183557.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">160206s2014 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1103/PhysRevC.91.015202</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20160617</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC1966212046</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC1966212046</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel</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">DNB</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">UA 6500.</subfield><subfield code="q">AVZ</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Huber, G. M</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2014</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">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nuclear Experiment</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Blok, H. P</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Butuceanu, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gaskell, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Horn, T</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mack, D. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Abbott, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Aniol, K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Anklin, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Armstrong, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Arrington, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Assamagan, K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Avery, S</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Baker, O. K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Barrett, B</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Beise, E. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bochna, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Boeglin, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Brash, E. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Breuer, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chang, C. C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chant, N</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Christy, M. E</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dunne, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Eden, T</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ent, R</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fenker, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gibson, E. F</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gilman, R</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gustafsson, K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hinton, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Holt, R. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jackson, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jin, S</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jones, M. K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Keppel, C. E</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kim, P. H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kim, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">King, P. M</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Klein, A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Koltenuk, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kovaltchouk, V</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liang, M</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liu, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lolos, G. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lung, A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Margaziotis, D. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Markowitz, P</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Matsumura, A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">McKee, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Meekins, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mitchell, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Miyoshi, T</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mkrtchyan, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mueller, B</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Niculescu, G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Niculescu, I</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Okayasu, Y</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pentchev, L</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Perdrisat, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pitz, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Potterveld, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Punjabi, V</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Qin, L. M</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Reimer, P. E</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Reinhold, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Roche, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Roos, P. G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Sarty, A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Shin, I. K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Smith, G. R</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Stepanyan, S</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tang, L. G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tadevosyan, V</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tvaskis, V</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">van der Meer, R. L. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vansyoc, K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Van Westrum, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vidakovic, S</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Volmer, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vulcan, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Warren, G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wood, S. A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Xu, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yan, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhao, W. -X</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zheng, X</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zihlmann, B</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Collaboration, The Jefferson Lab Fpi</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Physical review / C</subfield><subfield code="d">Woodbury, NY : Inst., 1970</subfield><subfield code="g">(2014)</subfield><subfield code="w">(DE-627)129508659</subfield><subfield code="w">(DE-600)209771-0</subfield><subfield code="w">(DE-576)01491493X</subfield><subfield code="x">2469-9985</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">year:2014</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">http://dx.doi.org/10.1103/PhysRevC.91.015202</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">http://arxiv.org/abs/1412.5140</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHY</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-AST</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_21</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2279</subfield></datafield><datafield tag="936" ind1="r" ind2="v"><subfield code="a">UA 6500.</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="j">2014</subfield></datafield></record></collection>
|
| author |
Huber, G. M |
| spellingShingle |
Huber, G. M ddc 530 rvk UA 6500. misc Nuclear Experiment Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium |
| authorStr |
Huber, G. M |
| ppnlink_with_tag_str_mv |
@@773@@(DE-627)129508659 |
| format |
Article |
| dewey-ones |
530 - Physics |
| delete_txt_mv |
keep |
| author_role |
aut |
| collection |
OLC |
| remote_str |
false |
| illustrated |
Not Illustrated |
| issn |
2469-9985 |
| topic_title |
530 DNB UA 6500. AVZ rvk Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium Nuclear Experiment |
| topic |
ddc 530 rvk UA 6500. misc Nuclear Experiment |
| topic_unstemmed |
ddc 530 rvk UA 6500. misc Nuclear Experiment |
| topic_browse |
ddc 530 rvk UA 6500. misc Nuclear Experiment |
| format_facet |
Aufsätze Gedruckte Aufsätze |
| format_main_str_mv |
Text Zeitschrift/Artikel |
| carriertype_str_mv |
nc |
| author2_variant |
h p b hp hpb c b cb d g dg t h th d j m dj djm d a da k a ka h a ha c a ca j a ja k a ka s a sa o k b ok okb b b bb e j b ej ejb c b cb w b wb e j b ej ejb h b hb c c c cc ccc n c nc m e c me mec j d jd t e te r e re h f hf e f g ef efg r g rg k g kg w h wh r j h rj rjh h j hj s j sj m k j mk mkj c e k ce cek p h k ph phk w k wk p m k pm pmk a k ak d k dk v k vk m l ml j l jl g j l gj gjl a l al d j m dj djm p m pm a m am d m dm d m dm j m jm t m tm h m hm b m bm g n gn i n in y o yo l p lp c p cp d p dp d p dp v p vp l m q lm lmq p e r pe per j r jr j r jr p g r pg pgr a s as i k s ik iks g r s gr grs s s ss l g t lg lgt v t vt v t vt d m r l j v dmrlj dmrljv k v kv w d v wd wdv s v sv j v jv w v wv g w gw s a w sa saw c x cx c y cy w - z w- w-z x z xz b z bz t j l f c tjlf tjlfc |
| hierarchy_parent_title |
Physical review / C |
| hierarchy_parent_id |
129508659 |
| dewey-tens |
530 - Physics |
| hierarchy_top_title |
Physical review / C |
| isfreeaccess_txt |
false |
| familylinks_str_mv |
(DE-627)129508659 (DE-600)209771-0 (DE-576)01491493X |
| title |
Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium |
| ctrlnum |
(DE-627)OLC1966212046 (DE-599)GBVOLC1966212046 (PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0 (KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel |
| title_full |
Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium |
| author_sort |
Huber, G. M |
| journal |
Physical review / C |
| journalStr |
Physical review / C |
| lang_code |
eng |
| isOA_bool |
false |
| dewey-hundreds |
500 - Science |
| recordtype |
marc |
| publishDateSort |
2014 |
| contenttype_str_mv |
txt |
| author_browse |
Huber, G. M |
| class |
530 DNB UA 6500. AVZ rvk |
| format_se |
Aufsätze |
| author-letter |
Huber, G. M |
| doi_str_mv |
10.1103/PhysRevC.91.015202 |
| dewey-full |
530 |
| title_sort |
separated response functions in exclusive, forward \pi^{\pm} electroproduction on deuterium |
| title_auth |
Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium |
| abstract |
Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. |
| abstractGer |
Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. |
| abstract_unstemmed |
Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics. |
| collection_details |
GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OPC-AST GBV_ILN_21 GBV_ILN_40 GBV_ILN_70 GBV_ILN_2279 |
| title_short |
Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium |
| url |
http://dx.doi.org/10.1103/PhysRevC.91.015202 http://arxiv.org/abs/1412.5140 |
| remote_bool |
false |
| author2 |
Blok, H. P Butuceanu, C Gaskell, D Horn, T Mack, D. J Abbott, D Aniol, K Anklin, H Armstrong, C Arrington, J Assamagan, K Avery, S Baker, O. K Barrett, B Beise, E. J Bochna, C Boeglin, W Brash, E. J Breuer, H Chang, C. C Chant, N Christy, M. E Dunne, J Eden, T Ent, R Fenker, H Gibson, E. F Gilman, R Gustafsson, K Hinton, W Holt, R. J Jackson, H Jin, S Jones, M. K Keppel, C. E Kim, P. H Kim, W King, P. M Klein, A Koltenuk, D Kovaltchouk, V Liang, M Liu, J Lolos, G. J Lung, A Margaziotis, D. J Markowitz, P Matsumura, A McKee, D Meekins, D Mitchell, J Miyoshi, T Mkrtchyan, H Mueller, B Niculescu, G Niculescu, I Okayasu, Y Pentchev, L Perdrisat, C Pitz, D Potterveld, D Punjabi, V Qin, L. M Reimer, P. E Reinhold, J Roche, J Roos, P. G Sarty, A Shin, I. K Smith, G. R Stepanyan, S Tang, L. G Tadevosyan, V Tvaskis, V van der Meer, R. L. J Vansyoc, K Van Westrum, D Vidakovic, S Volmer, J Vulcan, W Warren, G Wood, S. A Xu, C Yan, C Zhao, W. -X Zheng, X Zihlmann, B Collaboration, The Jefferson Lab Fpi |
| author2Str |
Blok, H. P Butuceanu, C Gaskell, D Horn, T Mack, D. J Abbott, D Aniol, K Anklin, H Armstrong, C Arrington, J Assamagan, K Avery, S Baker, O. K Barrett, B Beise, E. J Bochna, C Boeglin, W Brash, E. J Breuer, H Chang, C. C Chant, N Christy, M. E Dunne, J Eden, T Ent, R Fenker, H Gibson, E. F Gilman, R Gustafsson, K Hinton, W Holt, R. J Jackson, H Jin, S Jones, M. K Keppel, C. E Kim, P. H Kim, W King, P. M Klein, A Koltenuk, D Kovaltchouk, V Liang, M Liu, J Lolos, G. J Lung, A Margaziotis, D. J Markowitz, P Matsumura, A McKee, D Meekins, D Mitchell, J Miyoshi, T Mkrtchyan, H Mueller, B Niculescu, G Niculescu, I Okayasu, Y Pentchev, L Perdrisat, C Pitz, D Potterveld, D Punjabi, V Qin, L. M Reimer, P. E Reinhold, J Roche, J Roos, P. G Sarty, A Shin, I. K Smith, G. R Stepanyan, S Tang, L. G Tadevosyan, V Tvaskis, V van der Meer, R. L. J Vansyoc, K Van Westrum, D Vidakovic, S Volmer, J Vulcan, W Warren, G Wood, S. A Xu, C Yan, C Zhao, W. -X Zheng, X Zihlmann, B Collaboration, The Jefferson Lab Fpi |
| ppnlink |
129508659 |
| mediatype_str_mv |
n |
| isOA_txt |
false |
| hochschulschrift_bool |
false |
| author2_role |
oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth oth |
| doi_str |
10.1103/PhysRevC.91.015202 |
| up_date |
2024-07-03T20:46:06.186Z |
| _version_ |
1803592208180314112 |
| fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC1966212046</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20220222183557.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">160206s2014 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1103/PhysRevC.91.015202</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20160617</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC1966212046</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC1966212046</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)a733-70b082594eaff6beee1d0a03a55de5ae779bb9495e483c92691e3fd53a918b6e0</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0054933920140000000000000000separatedresponsefunctionsinexclusiveforwardpipmel</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">DNB</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">UA 6500.</subfield><subfield code="q">AVZ</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Huber, G. M</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Separated Response Functions in Exclusive, Forward \pi^{\pm} Electroproduction on Deuterium</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2014</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">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Background: Measurements of forward exclusive meson production at different squared four-momenta of the exchanged virtual photon, Q^2, and at different four-momentum transfer, t, can be used to probe QCD's transition from meson-nucleon degrees of freedom at long distances to quark-gluon degrees of freedom at short scales. Ratios of separated response functions in \pi^- and \pi^+ electroproduction are particularly informative. The ratio for transverse photons may allow this transition to be more easily observed, while the ratio for longitudinal photons provides a crucial verification of the assumed pole dominance, needed for reliable extraction of the pion form factor from electroproduction data. Method: Data were acquired with 2.6-5.2 GeV electron beams and the HMS+SOS spectrometers in Jefferson Lab Hall C, at central Q^2 values of 0.6, 1.0, 1.6 GeV^2 at W=1.95 GeV, and Q^2=2.45 GeV^2 at W=2.22 GeV. There was significant coverage in \phi and \epsilon, which allowed separation of \sigma_{L,T,LT,TT}. Results: \sigma_L shows a clear signature of the pion pole, with a sharp rise at small -t. In contrast, \sigma_T is much flatter versus t. The longitudinal/transverse ratios evolve with Q^2 and t, and at the highest Q^2=2.45 GeV^2 show a slight enhancement for \pi^- production compared to \pi^+. The \pi^-/\pi^+ ratio for transverse photons exhibits only a small Q^2-dependence, following a nearly universal curve with t, with a steep transition to a value of about 0.25, consistent with s-channel quark knockout. The \sigma_{TT}/\sigma_T ratio also drops rapidly with Q^2, qualitatively consistent with s-channel helicity conservation. The \pi^-/\pi^+ ratio for longitudinal photons indicates a small isoscalar contamination at W=1.95 GeV, consistent with what was observed in our earlier determination of the pion form factor at these kinematics.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Nuclear Experiment</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Blok, H. P</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Butuceanu, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gaskell, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Horn, T</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mack, D. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Abbott, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Aniol, K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Anklin, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Armstrong, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Arrington, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Assamagan, K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Avery, S</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Baker, O. K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Barrett, B</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Beise, E. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bochna, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Boeglin, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Brash, E. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Breuer, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chang, C. C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Chant, N</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Christy, M. E</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dunne, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Eden, T</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Ent, R</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fenker, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gibson, E. F</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gilman, R</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gustafsson, K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hinton, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Holt, R. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jackson, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jin, S</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jones, M. K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Keppel, C. E</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kim, P. H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kim, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">King, P. M</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Klein, A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Koltenuk, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kovaltchouk, V</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liang, M</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liu, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lolos, G. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lung, A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Margaziotis, D. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Markowitz, P</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Matsumura, A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">McKee, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Meekins, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mitchell, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Miyoshi, T</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mkrtchyan, H</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mueller, B</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Niculescu, G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Niculescu, I</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Okayasu, Y</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pentchev, L</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Perdrisat, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pitz, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Potterveld, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Punjabi, V</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Qin, L. M</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Reimer, P. E</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Reinhold, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Roche, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Roos, P. G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Sarty, A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Shin, I. K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Smith, G. R</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Stepanyan, S</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tang, L. G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tadevosyan, V</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tvaskis, V</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">van der Meer, R. L. J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vansyoc, K</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Van Westrum, D</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vidakovic, S</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Volmer, J</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Vulcan, W</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Warren, G</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wood, S. A</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Xu, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yan, C</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhao, W. -X</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zheng, X</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zihlmann, B</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Collaboration, The Jefferson Lab Fpi</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Physical review / C</subfield><subfield code="d">Woodbury, NY : Inst., 1970</subfield><subfield code="g">(2014)</subfield><subfield code="w">(DE-627)129508659</subfield><subfield code="w">(DE-600)209771-0</subfield><subfield code="w">(DE-576)01491493X</subfield><subfield code="x">2469-9985</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">year:2014</subfield></datafield><datafield tag="856" ind1="4" ind2="1"><subfield code="u">http://dx.doi.org/10.1103/PhysRevC.91.015202</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="u">http://arxiv.org/abs/1412.5140</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_A</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_OLC</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHY</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-AST</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_21</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2279</subfield></datafield><datafield tag="936" ind1="r" ind2="v"><subfield code="a">UA 6500.</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="j">2014</subfield></datafield></record></collection>
|
| score |
7.401704 |