SMuK 2021 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 12: Heavy-Ion Collisions and QCD Phases II

HK 12.6: Talk

Tuesday, August 31, 2021, 18:00–18:15, H1

Recent measurements of charged-particle production in ALICE — •Youssef El Mard Bouziani for the ALICE collaboration — Institut für Kernphysik, Goethe-Universität Frankfurt

The ALICE experiment at the LHC is designed to investigate the properties of the Quark-Gluon Plasma by studying high-energy A–A collisions. Medium effects like parton energy loss can be examined by comparing the production of charged particles at high transverse momentum (p_T) in heavy-ion collisions with the one in pp collisions where no hot QCD medium is expected. This comparison is usually expressed by means of the nuclear modification factor R_AA. In addition, the correlation between p_T spectra and event multiplicity of charged particles can give insight in the different production mechanisms.
In this talk, we report on a study of charged-particle production in pp, p-Pb, Xe–Xe and Pb–Pb collisions at all available LHC beam energies. By comparing to QCD-inspired models, this measurement can help to understand the energy and system size dependence of charged-particle production at LHC.
Supported by BMBF and the Helmholtz Association.