Search for medium effects using jets from bottom quarks in PbPb collisions at √s_NN=5.02TeV

Authors

A. Tumasyan, CMS Collaboration

Date of this Version

7-14-2023

Citation

PhysicsLettersB844(2023)137849. https://doi.org/10.1016/j.physletb.2023.137849

Comments

Open access.

Abstract

The first study of the shapes of jets arising from bottom (b) quarks in heavy ion collisions is presented. Jet shapes are studied using charged hadron constituents as a function of their radial distance from the jet axis. Lead-lead (PbPb) collision data at a nucleon-nucleon center-of-mass energy of √s_NN=5.02TeVwere recorded by the CMS detector at the LHC, with an integrated luminosity of 1.69nb⁻¹. Compared to proton-proton collisions, aredistribution of the energy inbjets to larger distances from the jet axis is observed in PbPb collisions. This medium-induced redistribution is found to be substantially larger forbjets than for inclusive jets.