Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Modified Glauber Model and a new interpretation of collective effects in AA and pA at LHC. / Seryakov, Andrey; Feofilov, Grigory.
XIth Conference on Quark Confinement and Hadron Spectrum. ред. / Nora Brambilla; Sergei Kolevatov; Alexander Andrianov; Victor Kim. American Institute of Physics, 2016. 070001 (AIP Conference Proceedings; Том 1701).Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
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TY - GEN
T1 - Modified Glauber Model and a new interpretation of collective effects in AA and pA at LHC
AU - Seryakov, Andrey
AU - Feofilov, Grigory
PY - 2016/1/22
Y1 - 2016/1/22
N2 - The Monte Carlo version of the Modified Glauber Model (MGM) [1] is updated and applied to the analysis of the total multiplicity yields of charged particles in mucleus-nucleus and proton-nucleus collisions in a broad energy range. The MGM takes into account the energy conservation and momentum loss for particle production in each nucleon-nucleon inelastic collision. This is done by introducing a mean fraction of the initial nucleon momentum which is allowed to be lost in each inelastic interaction between nucleons of colliding nuclei. Therefore, the next nucleon-nucleon inelastic collision takes place at a lower energy √s and with the relevant cross-section sinel(√s). Comparison of theMGMcalculations to the available experimental data on mean total multiplicity <Nch > in central nucleus-nucleus collisions from AGS to RHIC energies allows to fit a single model parameter k = 0.35. The same value of k is found to be valid for successful description of the scaling of < Nch > /2Npart with the number of nucleon-participants Npart in Pb-Pb collisions observed in ALICE at the LHC [2]. A considerable reduction of Ncoll is obtained in MGM for the case of nucleus-nucleus collisions at the LHC energy in comparison with the standard Glauber approach, while the number of participants Npart is practically unchanged. In the MGM approach the nucleon stopping phenomenon is observed, that has dramatic effect in case of proton-nucleus collisions. The MGM predicts considerable decrease (by a factor of about 3 for central collisions in comparison with the standard Glauber-based estimates) of the number of participants < Npart >=< Ncoll > +1 in case of pA interactions at the LHC.
AB - The Monte Carlo version of the Modified Glauber Model (MGM) [1] is updated and applied to the analysis of the total multiplicity yields of charged particles in mucleus-nucleus and proton-nucleus collisions in a broad energy range. The MGM takes into account the energy conservation and momentum loss for particle production in each nucleon-nucleon inelastic collision. This is done by introducing a mean fraction of the initial nucleon momentum which is allowed to be lost in each inelastic interaction between nucleons of colliding nuclei. Therefore, the next nucleon-nucleon inelastic collision takes place at a lower energy √s and with the relevant cross-section sinel(√s). Comparison of theMGMcalculations to the available experimental data on mean total multiplicity <Nch > in central nucleus-nucleus collisions from AGS to RHIC energies allows to fit a single model parameter k = 0.35. The same value of k is found to be valid for successful description of the scaling of < Nch > /2Npart with the number of nucleon-participants Npart in Pb-Pb collisions observed in ALICE at the LHC [2]. A considerable reduction of Ncoll is obtained in MGM for the case of nucleus-nucleus collisions at the LHC energy in comparison with the standard Glauber approach, while the number of participants Npart is practically unchanged. In the MGM approach the nucleon stopping phenomenon is observed, that has dramatic effect in case of proton-nucleus collisions. The MGM predicts considerable decrease (by a factor of about 3 for central collisions in comparison with the standard Glauber-based estimates) of the number of participants < Npart >=< Ncoll > +1 in case of pA interactions at the LHC.
KW - Energy loss
KW - Glauber model
KW - Long-range correlations
KW - Monte Carlo model
KW - Nucleus-nucleus collisions
KW - Proton-nucleus collisions
KW - Quark-gluon strings interaction
UR - http://www.scopus.com/inward/record.url?scp=84984578391&partnerID=8YFLogxK
U2 - 10.1063/1.4938686
DO - 10.1063/1.4938686
M3 - Conference contribution
AN - SCOPUS:84984578391
T3 - AIP Conference Proceedings
BT - XIth Conference on Quark Confinement and Hadron Spectrum
A2 - Brambilla, Nora
A2 - Kolevatov, Sergei
A2 - Andrianov, Alexander
A2 - Kim, Victor
PB - American Institute of Physics
T2 - 11th Conference on Quark Confinement and Hadron Spectrum
Y2 - 8 September 2014 through 12 September 2014
ER -
ID: 54242317