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Jet properties in PbPb and pp collisions at &surd;{s_{NN}}=5.02 TeV

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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 %26amp;surd;{s_{NN}}=5.02 TeV via correlations of charged particles with the jet axis in relative pseudorapidity (Delta eta), relative azimuth (Delta varphi), and relative angular distance from the jet axis Delta r=%26amp;surd;{(Delta eta )^2+{(Delta phi )}^2} . This analysis uses data collected with the CMS detector at the LHC, corresponding to integrated luminosities of 404 mub-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. [Figure not available: see fulltext.]
  • 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 &surd;{s_{NN}}=5.02 TeV via correlations of charged particles with the jet axis in relative pseudorapidity (Delta eta), relative azimuth (Delta varphi), and relative angular distance from the jet axis Delta r=&surd;{(Delta eta )^2 {(Delta phi )}^2} . This analysis uses data collected with the CMS detector at the LHC, corresponding to integrated luminosities of 404 mub-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. [Figure not available: see fulltext.]

Publication Date

  • 2018

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