Status | Confirmed |
Seminar Series | IPHT-HEP |
Subjects | hep-ph |
Date | Tuesday 22 January 2019 |
Time | 16:00 |
Institute | IPHT |
Seminar Room | Salle Claude Itzykson, Bât. 774 |
Speaker's Last Name | Aleksas Mazeliauskas |
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Speaker's Institution | Heidelberg University |
Title | Chemical equilibration in hadronic collisions |
Abstract | We study chemical equilibration in out-of-equilibrium Quark-Gluon Plasma using the first principle method of QCD effective kinetic theory, accurate at weak coupling. In longitudinally expanding systems---relevant for relativistic nuclear collisions---we find that for realistic couplings chemical equilibration takes place after hydrodynamization, but well before local thermalization. We estimate that hadronic collisions with final state multiplicities $dNch/d \eta > \sim 102$ live long enough to reach approximate chemical equilibrium, which is consistent with the saturation of strangeness enhancement observed in proton-proton, proton-nucleus and nucleus-nucleus collisions. \\ \\ References: arXiv:1811.03040, arXiv:1811.03068 |
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