Search for Medium Effects Using Jets from Bottom Quarks in PbPb Collisions at √sNN = 5.02 TeV

Physics Letters B 2023
Kārlis Dreimanis, Guntis Pikurs, Markus Seidel, Viesturs Veckalns, CMS Collaboration

he 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 sNNsNN​ ​ = 5.02 TeV were recorded by the CMS detector at the LHC, with an integrated luminosity of 1.69 nb−1−1. Compared to proton-proton collisions, a redistribution of the energy in b jets to larger distances from the jet axis is observed in PbPb collisions. This medium-induced redistribution is found to be substantially larger for b jets than for inclusive jets.

Keywords
CMS Beauty quark b jets Heavy ion QGP Jet quenching
DOI
10.1016/j.physletb.2023.137849
Hyperlink
https://www.sciencedirect.com/science/article/pii/S0370269323001831?via%3Dihub

The CMS Collaboration, A.Tumasyan, K.Dreimanis, G.Pikurs, M.Seidel, V.Veckalns ... [et al.]. Search for Medium Effects Using Jets from Bottom Quarks in PbPb Collisions at √sNN = 5.02 TeV. Physics Letters B, 2023, Vol. 844, Article number 137849. ISSN 0370-2693. Available from: doi:10.1016/j.physletb.2023.137849

Publication language
English (en)