Study of high-p T charged particle suppression in PbPb compared to pp collisions at $$\sqrt{s_{\mathrm{NN}}}=2.76~\mathrm{TeV}$$
Journal Article
·
· European Physical Journal. C, Particles and Fields
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.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- The CMS Collaboration
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1437424
- Report Number(s):
- FERMILAB-PUB-12-679-CMS; arXiv:1202.2554; CMS-HIN-10-005; CERN-PH-EP-2012-043; 1088823
- Journal Information:
- European Physical Journal. C, Particles and Fields, Vol. 72, Issue 3; ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
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