Jet fragmentation functions in PbPb and pp collisions at 2.76 TeV with CMS
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Ma-2013-Jet fragmentation fu.pdf
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171.89 KB
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Author(s)
Ma, Frank
Date Issued
May 2013
Journal
Nuclear Physics A
Publisher
Elsevier
Citation
Ma, Frank. “Jet Fragmentation Functions in PbPb and Pp Collisions at 2.76 TeV with CMS.” Nuclear Physics A 904–905 (May 2013): 740c–743c. © CERN for the benefit of the CMS Collaboration
Version
Final published version
Abstract
The jet fragmentation function of inclusive jets with p[subscript T] > 100 GeV/c in PbPb collisions is measured for reconstructed charged particles with p[subscript T] > 1 GeV/c within the jet cone. A data sample of PbPb collisions collected in 2011 at a center-of-mass energy of √sNN = 2.76 TeV corresponding to an integrated luminosity of 129μb[superscript −1] is used. The results for PbPb collisions as a function of collision centrality are compared to reference distributions based on pp data collected at the same collision energy. A centrality-ordered modification of the fragmentation function is revealed. For the most central collisions a significant rise of the PbPb/pp fragmentation function ratio for the softest fragmentation products with p[subscript T] < 3 GeV/c is observed.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1016/j.nuclphysa.2013.02.123
