Production of strange particles in charged jets in p_Pb and Pb_Pb collisions measured with ALICE at the LHC

10th International Workshop on High-pT Physics in the RHIC/LHC Era

Zimmermann, Alice^1

Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 226, Heidelberg

69120, Germany^1

关键词: Charged jets;    Fragmentation process;    Jet productions;    Particle identifications;    Particle production;    Pb-Pb collisions;    Ultrarelativistic heavy ion collision;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/805/1/012009/pdf
DOI  :  10.1088/1742-6596/805/1/012009

来源: IOP

【 摘 要 】

Studies of jet production can provide information about the properties of the hot and dense strongly interacting matter created in ultra-relativistic heavy-ion collisions. Specifically, measurement of strange particles in jets may clarify the role of fragmentation processes in the anomalous baryon to meson ratio at intermediate particle pTthat was observed in lead-lead (Pb-Pb) and, to a lesser extent, in proton-lead (p-Pb) collisions. In this contribution, measurements are presented of the pTspectra of baryons and mesons produced in association with charged jets in Pb-Pb collisions at and p-Pb collisions at . The analysis is based on data recorded by ALICE at the LHC, exploiting its excellent particle identification capabilities. The baryon/meson ratios of strange particles associated with jets are studied for different event activities in p-Pb collisions and are restricted to central events in Pb-Pb collisions. A comparison is shown to the ratios obtained for inclusive particle production and for particles stemming from the underlying event as well as to PYTHIA proton-proton (pp) simulations.