Topology of the Υ-decay
Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is...
Ausführliche Beschreibung
Autor*in: |
Berger, Ch. [verfasserIn] |
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Format: |
Artikel |
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Sprache: |
Englisch |
Erschienen: |
1981 |
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Schlagwörter: |
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Anmerkung: |
© Springer-Verlag 1981 |
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Übergeordnetes Werk: |
Enthalten in: Zeitschrift für Physik - Springer-Verlag, 1979, 8(1981), 2 vom: Juni, Seite 101-114 |
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Übergeordnetes Werk: |
volume:8 ; year:1981 ; number:2 ; month:06 ; pages:101-114 |
Links: |
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DOI / URN: |
10.1007/BF01547873 |
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Katalog-ID: |
OLC2091883328 |
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520 | |a Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. | ||
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700 | 1 | |a Lackas, W. |4 aut | |
700 | 1 | |a Raupach, F. |4 aut | |
700 | 1 | |a Alexander, G. |4 aut | |
700 | 1 | |a Bürger, J. |4 aut | |
700 | 1 | |a Criegee, L. |4 aut | |
700 | 1 | |a Dehne, H. C. |4 aut | |
700 | 1 | |a Devenish, R. |4 aut | |
700 | 1 | |a Flügge, G. |4 aut | |
700 | 1 | |a Franke, G. |4 aut | |
700 | 1 | |a Gerke, Ch. |4 aut | |
700 | 1 | |a Knies, G. |4 aut | |
700 | 1 | |a Lehmann, E. |4 aut | |
700 | 1 | |a Stella, B. |4 aut | |
700 | 1 | |a Timm, U. |4 aut | |
700 | 1 | |a Wagner, W. |4 aut | |
700 | 1 | |a Winter, G. G. |4 aut | |
700 | 1 | |a Zimmermann, W. |4 aut | |
700 | 1 | |a Achterberg, O. |4 aut | |
700 | 1 | |a Blobel, V. |4 aut | |
700 | 1 | |a Boesten, L. |4 aut | |
700 | 1 | |a Kapitza, H. |4 aut | |
700 | 1 | |a Koppitz, B. |4 aut | |
700 | 1 | |a Lührsen, W. |4 aut | |
700 | 1 | |a Spitzer, H. |4 aut | |
700 | 1 | |a van Staa, R. |4 aut | |
700 | 1 | |a Bäcker, A. |4 aut | |
700 | 1 | |a Brandt, S. |4 aut | |
700 | 1 | |a Derikum, K. |4 aut | |
700 | 1 | |a Grupen, C. |4 aut | |
700 | 1 | |a Meyer, H. J. |4 aut | |
700 | 1 | |a Neumann, B. |4 aut | |
700 | 1 | |a Zech, G. |4 aut | |
700 | 1 | |a Daum, H. J. |4 aut | |
700 | 1 | |a Meyer, H. |4 aut | |
700 | 1 | |a Meyer, O. |4 aut | |
700 | 1 | |a Rössler, M. |4 aut | |
700 | 1 | |a Wacker, K. |4 aut | |
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10.1007/BF01547873 doi (DE-627)OLC2091883328 (DE-He213)BF01547873-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Berger, Ch. verfasserin aut Topology of the Υ-decay 1981 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 1981 Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. Phase Space Elementary Particle Monte Carlo Simulation Quantum Field Theory Lower Order Lackas, W. aut Raupach, F. aut Alexander, G. aut Bürger, J. aut Criegee, L. aut Dehne, H. C. aut Devenish, R. aut Flügge, G. aut Franke, G. aut Gerke, Ch. aut Knies, G. aut Lehmann, E. aut Stella, B. aut Timm, U. aut Wagner, W. aut Winter, G. G. aut Zimmermann, W. aut Achterberg, O. aut Blobel, V. aut Boesten, L. aut Kapitza, H. aut Koppitz, B. aut Lührsen, W. aut Spitzer, H. aut van Staa, R. aut Bäcker, A. aut Brandt, S. aut Derikum, K. aut Grupen, C. aut Meyer, H. J. aut Neumann, B. aut Zech, G. aut Daum, H. J. aut Meyer, H. aut Meyer, O. aut Rössler, M. aut Wacker, K. aut Enthalten in Zeitschrift für Physik Springer-Verlag, 1979 8(1981), 2 vom: Juni, Seite 101-114 (DE-627)130618799 (DE-600)795252-1 (DE-576)016125487 0170-9739 nnns volume:8 year:1981 number:2 month:06 pages:101-114 https://doi.org/10.1007/BF01547873 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4126 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4323 AR 8 1981 2 06 101-114 |
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10.1007/BF01547873 doi (DE-627)OLC2091883328 (DE-He213)BF01547873-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Berger, Ch. verfasserin aut Topology of the Υ-decay 1981 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 1981 Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. Phase Space Elementary Particle Monte Carlo Simulation Quantum Field Theory Lower Order Lackas, W. aut Raupach, F. aut Alexander, G. aut Bürger, J. aut Criegee, L. aut Dehne, H. C. aut Devenish, R. aut Flügge, G. aut Franke, G. aut Gerke, Ch. aut Knies, G. aut Lehmann, E. aut Stella, B. aut Timm, U. aut Wagner, W. aut Winter, G. G. aut Zimmermann, W. aut Achterberg, O. aut Blobel, V. aut Boesten, L. aut Kapitza, H. aut Koppitz, B. aut Lührsen, W. aut Spitzer, H. aut van Staa, R. aut Bäcker, A. aut Brandt, S. aut Derikum, K. aut Grupen, C. aut Meyer, H. J. aut Neumann, B. aut Zech, G. aut Daum, H. J. aut Meyer, H. aut Meyer, O. aut Rössler, M. aut Wacker, K. aut Enthalten in Zeitschrift für Physik Springer-Verlag, 1979 8(1981), 2 vom: Juni, Seite 101-114 (DE-627)130618799 (DE-600)795252-1 (DE-576)016125487 0170-9739 nnns volume:8 year:1981 number:2 month:06 pages:101-114 https://doi.org/10.1007/BF01547873 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4126 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4323 AR 8 1981 2 06 101-114 |
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10.1007/BF01547873 doi (DE-627)OLC2091883328 (DE-He213)BF01547873-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Berger, Ch. verfasserin aut Topology of the Υ-decay 1981 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 1981 Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. Phase Space Elementary Particle Monte Carlo Simulation Quantum Field Theory Lower Order Lackas, W. aut Raupach, F. aut Alexander, G. aut Bürger, J. aut Criegee, L. aut Dehne, H. C. aut Devenish, R. aut Flügge, G. aut Franke, G. aut Gerke, Ch. aut Knies, G. aut Lehmann, E. aut Stella, B. aut Timm, U. aut Wagner, W. aut Winter, G. G. aut Zimmermann, W. aut Achterberg, O. aut Blobel, V. aut Boesten, L. aut Kapitza, H. aut Koppitz, B. aut Lührsen, W. aut Spitzer, H. aut van Staa, R. aut Bäcker, A. aut Brandt, S. aut Derikum, K. aut Grupen, C. aut Meyer, H. J. aut Neumann, B. aut Zech, G. aut Daum, H. J. aut Meyer, H. aut Meyer, O. aut Rössler, M. aut Wacker, K. aut Enthalten in Zeitschrift für Physik Springer-Verlag, 1979 8(1981), 2 vom: Juni, Seite 101-114 (DE-627)130618799 (DE-600)795252-1 (DE-576)016125487 0170-9739 nnns volume:8 year:1981 number:2 month:06 pages:101-114 https://doi.org/10.1007/BF01547873 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4126 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4323 AR 8 1981 2 06 101-114 |
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10.1007/BF01547873 doi (DE-627)OLC2091883328 (DE-He213)BF01547873-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Berger, Ch. verfasserin aut Topology of the Υ-decay 1981 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 1981 Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. Phase Space Elementary Particle Monte Carlo Simulation Quantum Field Theory Lower Order Lackas, W. aut Raupach, F. aut Alexander, G. aut Bürger, J. aut Criegee, L. aut Dehne, H. C. aut Devenish, R. aut Flügge, G. aut Franke, G. aut Gerke, Ch. aut Knies, G. aut Lehmann, E. aut Stella, B. aut Timm, U. aut Wagner, W. aut Winter, G. G. aut Zimmermann, W. aut Achterberg, O. aut Blobel, V. aut Boesten, L. aut Kapitza, H. aut Koppitz, B. aut Lührsen, W. aut Spitzer, H. aut van Staa, R. aut Bäcker, A. aut Brandt, S. aut Derikum, K. aut Grupen, C. aut Meyer, H. J. aut Neumann, B. aut Zech, G. aut Daum, H. J. aut Meyer, H. aut Meyer, O. aut Rössler, M. aut Wacker, K. aut Enthalten in Zeitschrift für Physik Springer-Verlag, 1979 8(1981), 2 vom: Juni, Seite 101-114 (DE-627)130618799 (DE-600)795252-1 (DE-576)016125487 0170-9739 nnns volume:8 year:1981 number:2 month:06 pages:101-114 https://doi.org/10.1007/BF01547873 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4126 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4323 AR 8 1981 2 06 101-114 |
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10.1007/BF01547873 doi (DE-627)OLC2091883328 (DE-He213)BF01547873-p DE-627 ger DE-627 rakwb eng 530 VZ 530 VZ Berger, Ch. verfasserin aut Topology of the Υ-decay 1981 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 1981 Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. Phase Space Elementary Particle Monte Carlo Simulation Quantum Field Theory Lower Order Lackas, W. aut Raupach, F. aut Alexander, G. aut Bürger, J. aut Criegee, L. aut Dehne, H. C. aut Devenish, R. aut Flügge, G. aut Franke, G. aut Gerke, Ch. aut Knies, G. aut Lehmann, E. aut Stella, B. aut Timm, U. aut Wagner, W. aut Winter, G. G. aut Zimmermann, W. aut Achterberg, O. aut Blobel, V. aut Boesten, L. aut Kapitza, H. aut Koppitz, B. aut Lührsen, W. aut Spitzer, H. aut van Staa, R. aut Bäcker, A. aut Brandt, S. aut Derikum, K. aut Grupen, C. aut Meyer, H. J. aut Neumann, B. aut Zech, G. aut Daum, H. J. aut Meyer, H. aut Meyer, O. aut Rössler, M. aut Wacker, K. aut Enthalten in Zeitschrift für Physik Springer-Verlag, 1979 8(1981), 2 vom: Juni, Seite 101-114 (DE-627)130618799 (DE-600)795252-1 (DE-576)016125487 0170-9739 nnns volume:8 year:1981 number:2 month:06 pages:101-114 https://doi.org/10.1007/BF01547873 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_30 GBV_ILN_40 GBV_ILN_70 GBV_ILN_130 GBV_ILN_267 GBV_ILN_2006 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2018 GBV_ILN_2409 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4126 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4315 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4323 AR 8 1981 2 06 101-114 |
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Berger, Ch. @@aut@@ Lackas, W. @@aut@@ Raupach, F. @@aut@@ Alexander, G. @@aut@@ Bürger, J. @@aut@@ Criegee, L. @@aut@@ Dehne, H. C. @@aut@@ Devenish, R. @@aut@@ Flügge, G. @@aut@@ Franke, G. @@aut@@ Gerke, Ch. @@aut@@ Knies, G. @@aut@@ Lehmann, E. @@aut@@ Stella, B. @@aut@@ Timm, U. @@aut@@ Wagner, W. @@aut@@ Winter, G. G. @@aut@@ Zimmermann, W. @@aut@@ Achterberg, O. @@aut@@ Blobel, V. @@aut@@ Boesten, L. @@aut@@ Kapitza, H. @@aut@@ Koppitz, B. @@aut@@ Lührsen, W. @@aut@@ Spitzer, H. @@aut@@ van Staa, R. @@aut@@ Bäcker, A. @@aut@@ Brandt, S. @@aut@@ Derikum, K. @@aut@@ Grupen, C. @@aut@@ Meyer, H. J. @@aut@@ Neumann, B. @@aut@@ Zech, G. @@aut@@ Daum, H. J. @@aut@@ Meyer, H. @@aut@@ Meyer, O. @@aut@@ Rössler, M. @@aut@@ Wacker, K. @@aut@@ |
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Berger, Ch. Lackas, W. Raupach, F. Alexander, G. Bürger, J. Criegee, L. Dehne, H. C. Devenish, R. Flügge, G. Franke, G. Gerke, Ch. Knies, G. Lehmann, E. Stella, B. Timm, U. Wagner, W. Winter, G. G. Zimmermann, W. Achterberg, O. Blobel, V. Boesten, L. Kapitza, H. Koppitz, B. Lührsen, W. Spitzer, H. van Staa, R. Bäcker, A. Brandt, S. Derikum, K. Grupen, C. Meyer, H. J. Neumann, B. Zech, G. Daum, H. J. Meyer, H. Meyer, O. Rössler, M. Wacker, K. |
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Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. © Springer-Verlag 1981 |
abstractGer |
Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. © Springer-Verlag 1981 |
abstract_unstemmed |
Abstract Multihadron events resulting frome+e− annihilation at the Υ-resonance are analysed with respect to lowest order QCD which predicts a dominant Υ decay into three vector gluons. Smearing effects due to the gluon fragmentation are so large, however, that no clear 3-jet structure or flatness is expected in the hadron final state. Instead, Monte Carlo simulations predict event structures with thrust and triplicity distributions distinctly different from those of two quark-jet and of phase space like decay mechanisms. The data are in perfect agreement with the 3-vector gluon decay as predicted by QCD and exclude dominantly phase space like or 2-quark jet decays. Also, the decay into scalar gluons is excluded by the data. An upper limit for the Υ-decay into one photon and two gluons is obtained. © Springer-Verlag 1981 |
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