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

Author(s)
Alver, Burak Han; Bauer, Gerry P; Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Dutta, Valentina; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristian Allan; Klute, Markus; Lee, Y.-J.; Li, W.; Luckey Jr, P David; Ma, Teng; Nahn, Steven; Paus, Christoph M. E.; Ralph, Duncan Kelley; Roland, Christof E; Roland, Gunther M; Rudolph, Matthew Scott; Stephans, George S. F.; Stoeckli, Fabian; Sumorok, Konstanty C; Sung, Kevin Kai Hong; Velicanu, Dragos Alexandru; Wenger, Edward Allen; Wolf, Roger; Wyslouch, Boleslaw; Xie, Si; Yang, Mingming; Yilmaz, Yetkin; Yoon, Andrew; Zanetti, Marco; Chan, M.; Kim, Y.; ... Show more Show less
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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 pT=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 pT, this suppression is significantly reduced, approaching roughly a factor of 2 for particles with pT in the range pT=40–100 GeV/c.
Date issued
2012-03
URI
http://hdl.handle.net/1721.1/106817
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
The European Physical Journal C
Publisher
Elsevier
Citation
The CMS Collaboration et al. “Study of High-P T Charged Particle Suppression in PbPb Compared to Pp Collisions at √sNN = 2.76 TeV.” The European Physical Journal C 72.3 (2012): n. pag. © 2012 CERN for the benefit of the CMS collaboration
Version: Final published version
ISSN
1434-6044
1434-6052

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