About: Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at root s(NN)=2.76 TeV     Goto   Sponge   NotDistinct   Permalink

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  • The inclusive transverse momentum (p(T)) distributions of primary charged particles are measured in the pseudo-rapidity range vertical bar eta vertical bar <0.8 as a function of event centrality in Pb-Pb collisions at root S-NN = 2.76 TeV with ALICE at the LHC. The data are presented in the p(T) range 0.15 < p(T) <50 GeV/c for nine centrality intervals from 70-80% to 0-5%. The results in Pb-Pb are presented in terms of the nuclear modification factor R-AA using a pp reference spectrum measured at the same collision energy. We observe that the suppression of high-p(T) particles strongly depends on event centrality. The yield is most suppressed in central collisions (0-5%) with R-AA approximate to 0.13 at p(T) = 6-7 GeV/c. Above p(T) = 7 GeV/c, there is a significant rise in the nuclear modification factor, which reaches R-AA approximate to 0.4 for p(T) > 30 GeV/c. In peripheral collisions (70-80%), only moderate suppression (R-AA approximate to 0.6-0.7) and a weak p(T) dependence is observed. The measured nuclear modification factors are compared to other measurements and model calculations.
  • The inclusive transverse momentum (p(T)) distributions of primary charged particles are measured in the pseudo-rapidity range vertical bar eta vertical bar <0.8 as a function of event centrality in Pb-Pb collisions at root S-NN = 2.76 TeV with ALICE at the LHC. The data are presented in the p(T) range 0.15 < p(T) <50 GeV/c for nine centrality intervals from 70-80% to 0-5%. The results in Pb-Pb are presented in terms of the nuclear modification factor R-AA using a pp reference spectrum measured at the same collision energy. We observe that the suppression of high-p(T) particles strongly depends on event centrality. The yield is most suppressed in central collisions (0-5%) with R-AA approximate to 0.13 at p(T) = 6-7 GeV/c. Above p(T) = 7 GeV/c, there is a significant rise in the nuclear modification factor, which reaches R-AA approximate to 0.4 for p(T) > 30 GeV/c. In peripheral collisions (70-80%), only moderate suppression (R-AA approximate to 0.6-0.7) and a weak p(T) dependence is observed. The measured nuclear modification factors are compared to other measurements and model calculations. (en)
Title
  • Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at root s(NN)=2.76 TeV
  • Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at root s(NN)=2.76 TeV (en)
skos:prefLabel
  • Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at root s(NN)=2.76 TeV
  • Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at root s(NN)=2.76 TeV (en)
skos:notation
  • RIV/68378271:_____/13:00392304!RIV14-MSM-68378271
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(LA08015), P(LG13031), P(LK11209), S, Z(MSM6840770039)
http://linked.open...iv/cisloPeriodika
  • 3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 64563
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  • RIV/68378271:_____/13:00392304
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • ALICE; heavy ion collisions; CERN (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [92EC5197E80A]
http://linked.open...i/riv/nazevZdroje
  • Physics Letters. B
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 720
http://linked.open...iv/tvurceVysledku
  • Adamová, Dagmar
  • Bielčík, J.
  • Bielčíková, Jana
  • Kushpil, Svetlana
  • Kushpil, Vasilij
  • Mareš, Jiří A.
  • Polák, Karel
  • Tlustý, D.
  • Wagner, V.
  • Závada, Petr
  • Šumbera, Michal
  • Abelev, B.
  • Adam, J.
  • Čepila, J.
  • Pospíšil, V.
  • Pachr, M.
  • Krus, M.
  • Křelina, M.
  • Petráček, V.
  • Petráň, M.
  • Vajzer, Michal
  • Zach, Č.
  • Šmakal, R.
http://linked.open...ain/vavai/riv/wos
  • 000316513500005
http://linked.open...n/vavai/riv/zamer
issn
  • 0370-2693
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.physletb.2013.01.051
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