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Study of high-pT charged particle suppression in PbPb compared to pp collisions at √sNN = 2.76 TeV
Journal article   Open access   Peer reviewed

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

CMS Collaboration
The European physical journal. C, Particles and fields, Vol.72(3), 1945
2012
DOI: 10.1140/epjc/s10052-012-1945-x
url
https://doi.org/10.1140/epjc/s10052-012-1945-xView
Published (Version of record) Open Access

Abstract

The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at sNN−−−−√=2.76 TeV by the CMS experiment at the LHC. In the transverse momentum range p T=5–10 GeV/c, the charged particle yield in the most central PbPb collisions is suppressed by up to a factor of 7 compared to the pp yield scaled by the number of incoherent nucleon–nucleon collisions. At higher p T, this suppression is significantly reduced, approaching roughly a factor of 2 for particles with p T in the range p T=40–100 GeV/c.
Physics Exact sciences and technology The physics of elementary particles and fields

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