Jet properties in PbPb and pp collisions at √sNN=5.02 TeV

The CMS Collaboration

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Abstract

Modifications of the properties of jets in PbPb collisions, relative to those in pp collisions, are studied at a nucleon-nucleon center-of-mass energy of sNN=5.02 TeV via correlations of charged particles with the jet axis in relative pseudorapidity (Δη), relative azimuth (Δϕ), and relative angular distance from the jet axis Δr=(Δη)2+(Δϕ)2. This analysis uses data collected with the CMS detector at the LHC, corresponding to integrated luminosities of 404 μb−1 and 27.4 pb−1 for PbPb and pp collisions, respectively. Charged particle number densities, jet fragmentation functions, and jet shapes are presented as a function of PbPb collision centrality and charged-particle track transverse momentum, providing a differential description of jet modifications due to interactions with the quark-gluon plasma.

Original languageEnglish
Article number6
JournalJournal of High Energy Physics
Volume2018
Issue number5
DOIs
Publication statusPublished - 2018 May 1

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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