12th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

Particle yield modification in jet-like regions using azimuthal di-hadron correlations in Pb--Pb collisions at 5.36 TeV with ALICE

Not scheduled

20m

DEJIMA MESSE NAGASAKI

Poster 2. High momentum hadrons and correlations Parallel Session 8

Speaker

ALICE Collaboration

Description

The study of the produced hot and dense matter formed in heavy-ion collisions at the LHC allows the characterization of the quark--gluon plasma (QGP), the deconfined state of quarks and gluons. The measurement of the ratio of yields of charged particles in central to peripheral heavy-ion collisions ($I_{\rm{CP}}$) provides strong constraints on the quenching mechanism in the QGP. In this talk, the modification of the per-trigger yield of associated particles, $I_{\rm{CP}}$, extracted from dihadron correlations in Run 3 Pb--Pb collisions at 5.36 TeV will be presented. Such measurements have the potential to show two distinct effects: suppression on the away side due to strong in-medium energy loss as well as enhancement on the near side due to the reappearance of the quenched energy. A detailed study on collision energy and system size dependence of $I_{\rm{CP}}$ will be shown by comparing the results from Pb--Pb collisions at 2.76 TeV at the LHC and Au--Au collisions at RHIC.