Study of high-pT charged particle suppression in PbPb compared to pp collisions at sqrt(sNN)=2.76 TeV

CMS Collaboration

Research output: Contribution to journalArticle

355 Citations (Scopus)

Abstract

The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at sqrt(sNN) = 2.76 TeV by the CMS experiment at the LHC. In the transverse momentum range pt = 5-10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 5 compared to the pp yield scaled by the number of incoherent nucleon-nucleon collisions. At higher pt, this suppression is significantly reduced, approaching roughly a factor of 2 for particles with pt in the range pt=40-100 GeV/c.
Original languageEnglish
Article number1945
Number of pages22
JournalThe European Physical Journal C
Volume72
Publication statusPublished - 29 Mar 2012

Keywords

  • cms
  • physics

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