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Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERA
Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity ep scattering at a centre-of-mass energy $ \sqrt{s} $ = 318 GeV with the ZEUS detector at HERA. Two- and four-particle azimuthal correlations, as well as multiplicity, transverse momentum, and...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2021
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/JHEP12(2021)102 http://cds.cern.ch/record/2798871 |
| _version_ | 1780972500311605248 |
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| author | Abt, I. Aggarwal, R. Aushev, V. Behnke, O. Bertolin, A. Bloch, I. Brock, I. Brook, N.H. Brugnera, R. Bruni, A. Bussey, P.J. Caldwell, A. Catterall, C.D. Chwastowski, J. Ciborowski, J. Ciesielski, R. Cooper-Sarkar, A.M. Corradi, M. Dementiev, R.K. Dusini, S. Ferrando, J. Floerchinger, S. Foster, B. Gallo, E. Gangadharan, D. Garfagnini, A. Geiser, A. Gladilin, L.K. Golubkov, Yu. A. Grzelak, G. Gwenlan, C. Hochman, D. Jomhari, N.Z. Kadenko, I. Karshon, U. Kaur, P. Klanner, R. Klein, U. Korzhavina, I.A. Kovalchuk, N. Kuze, M. Levchenko, B.B. Levy, A. Löhr, B. Lohrmann, E. Longhin, A. Lorkowski, F. Lukina, O.Yu. Makarenko, I. Malka, J. Masciocchi, S. Nagano, K. Nam, J.D. Onderwaater, J. Onishchuk, Yu. Paul, E. Pidhurskyi, I. Polini, A. Przybycień, M. Quintero, A. Ruspa, M. Schneekloth, U. Schörner-Sadenius, T. Selyuzhenkov, I. Shchedrolosiev, M. Shcheglova, L.M. Skillicorn, I.O. Słomiński, W. Solano, A. Stanco, L. Stefaniuk, N. Surrow, B. Tokushuku, K. Turkot, O. Tymieniecka, T. Verbytskyi, A. Wan Abdullah, W.A. T. Wichmann, K. Wing, M. Yamada, S. Yamazaki, Y. Żarnecki, A.F. Zenaiev, O. |
| author_facet | Abt, I. Aggarwal, R. Aushev, V. Behnke, O. Bertolin, A. Bloch, I. Brock, I. Brook, N.H. Brugnera, R. Bruni, A. Bussey, P.J. Caldwell, A. Catterall, C.D. Chwastowski, J. Ciborowski, J. Ciesielski, R. Cooper-Sarkar, A.M. Corradi, M. Dementiev, R.K. Dusini, S. Ferrando, J. Floerchinger, S. Foster, B. Gallo, E. Gangadharan, D. Garfagnini, A. Geiser, A. Gladilin, L.K. Golubkov, Yu. A. Grzelak, G. Gwenlan, C. Hochman, D. Jomhari, N.Z. Kadenko, I. Karshon, U. Kaur, P. Klanner, R. Klein, U. Korzhavina, I.A. Kovalchuk, N. Kuze, M. Levchenko, B.B. Levy, A. Löhr, B. Lohrmann, E. Longhin, A. Lorkowski, F. Lukina, O.Yu. Makarenko, I. Malka, J. Masciocchi, S. Nagano, K. Nam, J.D. Onderwaater, J. Onishchuk, Yu. Paul, E. Pidhurskyi, I. Polini, A. Przybycień, M. Quintero, A. Ruspa, M. Schneekloth, U. Schörner-Sadenius, T. Selyuzhenkov, I. Shchedrolosiev, M. Shcheglova, L.M. Skillicorn, I.O. Słomiński, W. Solano, A. Stanco, L. Stefaniuk, N. Surrow, B. Tokushuku, K. Turkot, O. Tymieniecka, T. Verbytskyi, A. Wan Abdullah, W.A. T. Wichmann, K. Wing, M. Yamada, S. Yamazaki, Y. Żarnecki, A.F. Zenaiev, O. |
| author_sort | Abt, I. |
| collection | CERN |
| description | Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity ep scattering at a centre-of-mass energy $ \sqrt{s} $ = 318 GeV with the ZEUS detector at HERA. Two- and four-particle azimuthal correlations, as well as multiplicity, transverse momentum, and pseudorapidity distributions for charged-particle multiplicities N$_{ch}$ ≥ 20 are measured. The dependence of two-particle correlations on the virtuality of the exchanged photon shows a clear transition from photoproduction to neutral current deep inelastic scattering. For the multiplicities studied, neither the measurements in photoproduction processes nor those in neutral current deep inelastic scattering indicate significant collective behaviour of the kind observed in high-multiplicity hadronic collisions at RHIC and the LHC. Comparisons of PYTHIA predictions with the measurements in photoproduction strongly indicate the presence of multiparton interactions from hadronic fluctuations of the exchanged photon. |
| id | cern-2798871 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2021 |
| record_format | invenio |
| spelling | cern-27988712023-03-21T05:36:25Zdoi:10.1007/JHEP12(2021)102http://cds.cern.ch/record/2798871engAbt, I.Aggarwal, R.Aushev, V.Behnke, O.Bertolin, A.Bloch, I.Brock, I.Brook, N.H.Brugnera, R.Bruni, A.Bussey, P.J.Caldwell, A.Catterall, C.D.Chwastowski, J.Ciborowski, J.Ciesielski, R.Cooper-Sarkar, A.M.Corradi, M.Dementiev, R.K.Dusini, S.Ferrando, J.Floerchinger, S.Foster, B.Gallo, E.Gangadharan, D.Garfagnini, A.Geiser, A.Gladilin, L.K.Golubkov, Yu. A.Grzelak, G.Gwenlan, C.Hochman, D.Jomhari, N.Z.Kadenko, I.Karshon, U.Kaur, P.Klanner, R.Klein, U.Korzhavina, I.A.Kovalchuk, N.Kuze, M.Levchenko, B.B.Levy, A.Löhr, B.Lohrmann, E.Longhin, A.Lorkowski, F.Lukina, O.Yu.Makarenko, I.Malka, J.Masciocchi, S.Nagano, K.Nam, J.D.Onderwaater, J.Onishchuk, Yu.Paul, E.Pidhurskyi, I.Polini, A.Przybycień, M.Quintero, A.Ruspa, M.Schneekloth, U.Schörner-Sadenius, T.Selyuzhenkov, I.Shchedrolosiev, M.Shcheglova, L.M.Skillicorn, I.O.Słomiński, W.Solano, A.Stanco, L.Stefaniuk, N.Surrow, B.Tokushuku, K.Turkot, O.Tymieniecka, T.Verbytskyi, A.Wan Abdullah, W.A. T.Wichmann, K.Wing, M.Yamada, S.Yamazaki, Y.Żarnecki, A.F.Zenaiev, O.Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERAnucl-exNuclear Physics - Experimenthep-exParticle Physics - ExperimentCollective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity ep scattering at a centre-of-mass energy $ \sqrt{s} $ = 318 GeV with the ZEUS detector at HERA. Two- and four-particle azimuthal correlations, as well as multiplicity, transverse momentum, and pseudorapidity distributions for charged-particle multiplicities N$_{ch}$ ≥ 20 are measured. The dependence of two-particle correlations on the virtuality of the exchanged photon shows a clear transition from photoproduction to neutral current deep inelastic scattering. For the multiplicities studied, neither the measurements in photoproduction processes nor those in neutral current deep inelastic scattering indicate significant collective behaviour of the kind observed in high-multiplicity hadronic collisions at RHIC and the LHC. Comparisons of PYTHIA predictions with the measurements in photoproduction strongly indicate the presence of multiparton interactions from hadronic fluctuations of the exchanged photon.Collective behaviour of final-state hadrons, and multiparton interactions are studied in high-multiplicity $ep$ scattering at a centre-of-mass energy $\sqrt{s}=318$ GeV with the ZEUS detector at HERA. Two- and four-particle azimuthal correlations, as well as multiplicity, transverse momentum, and pseudorapidity distributions for charged-particle multiplicities $N_{\textrm ch} \geq 20$ are measured. The dependence of two-particle correlations on the virtuality of the exchanged photon shows a clear transition from photoproduction to neutral current deep inelastic scattering. For the multiplicities studied, neither the measurements in photoproduction processes nor those in neutral current deep inelastic scattering indicate significant collective behaviour of the kind observed in high-multiplicity hadronic collisions at RHIC and the LHC. Comparisons of PYTHIA predictions with the measurements in photoproduction strongly indicate the presence of multiparton interactions from hadronic fluctuations of the exchanged photon.arXiv:2106.12377DESY-21-099oai:cds.cern.ch:27988712021-06-23 |
| spellingShingle | nucl-ex Nuclear Physics - Experiment hep-ex Particle Physics - Experiment Abt, I. Aggarwal, R. Aushev, V. Behnke, O. Bertolin, A. Bloch, I. Brock, I. Brook, N.H. Brugnera, R. Bruni, A. Bussey, P.J. Caldwell, A. Catterall, C.D. Chwastowski, J. Ciborowski, J. Ciesielski, R. Cooper-Sarkar, A.M. Corradi, M. Dementiev, R.K. Dusini, S. Ferrando, J. Floerchinger, S. Foster, B. Gallo, E. Gangadharan, D. Garfagnini, A. Geiser, A. Gladilin, L.K. Golubkov, Yu. A. Grzelak, G. Gwenlan, C. Hochman, D. Jomhari, N.Z. Kadenko, I. Karshon, U. Kaur, P. Klanner, R. Klein, U. Korzhavina, I.A. Kovalchuk, N. Kuze, M. Levchenko, B.B. Levy, A. Löhr, B. Lohrmann, E. Longhin, A. Lorkowski, F. Lukina, O.Yu. Makarenko, I. Malka, J. Masciocchi, S. Nagano, K. Nam, J.D. Onderwaater, J. Onishchuk, Yu. Paul, E. Pidhurskyi, I. Polini, A. Przybycień, M. Quintero, A. Ruspa, M. Schneekloth, U. Schörner-Sadenius, T. Selyuzhenkov, I. Shchedrolosiev, M. Shcheglova, L.M. Skillicorn, I.O. Słomiński, W. Solano, A. Stanco, L. Stefaniuk, N. Surrow, B. Tokushuku, K. Turkot, O. Tymieniecka, T. Verbytskyi, A. Wan Abdullah, W.A. T. Wichmann, K. Wing, M. Yamada, S. Yamazaki, Y. Żarnecki, A.F. Zenaiev, O. Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERA |
| title | Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERA |
| title_full | Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERA |
| title_fullStr | Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERA |
| title_full_unstemmed | Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERA |
| title_short | Azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at HERA |
| title_sort | azimuthal correlations in photoproduction and deep inelastic $ep$ scattering at hera |
| topic | nucl-ex Nuclear Physics - Experiment hep-ex Particle Physics - Experiment |
| url | https://dx.doi.org/10.1007/JHEP12(2021)102 http://cds.cern.ch/record/2798871 |
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