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Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at s NN =2.76 TeV

Adam, J. ; Christiansen, Peter LU ; Ljunggren, Martin LU ; Oskarsson, Anders LU ; Richert, Tuva LU ; Silvermyr, David LU orcid ; Sogaard, Carsten LU ; Stenlund, Evert LU ; Vislavicius, Vytautas LU and Zyzak, M. (2016) In Physical Review C 93(3).
Abstract
Transverse momentum (pT) spectra of pions, kaons, and protons up to pT=20GeV/c have been measured in Pb-Pb collisions at sNN=2.76TeV using the ALICE detector for six different centrality classes covering 0%-80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT≈3GeV/c in central Pb-Pb collisions that decreases for more peripheral collisions. For pT>10GeV/c, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10%-20%. This suggests there is no direct interplay between the energy loss in the medium and the particle species composition in the hard core of the quenched jet. For pT
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author
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author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
93
issue
3
article number
034913
publisher
American Physical Society
external identifiers
  • scopus:84963704506
ISSN
2469-9985
DOI
10.1103/PhysRevC.93.034913
language
English
LU publication?
yes
id
a3207692-50b9-4336-8326-3a8acce09de1
date added to LUP
2022-03-31 14:36:34
date last changed
2023-03-08 06:26:40
@article{a3207692-50b9-4336-8326-3a8acce09de1,
  abstract     = {{Transverse momentum (pT) spectra of pions, kaons, and protons up to pT=20GeV/c have been measured in Pb-Pb collisions at sNN=2.76TeV using the ALICE detector for six different centrality classes covering 0%-80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT≈3GeV/c in central Pb-Pb collisions that decreases for more peripheral collisions. For pT>10GeV/c, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10%-20%. This suggests there is no direct interplay between the energy loss in the medium and the particle species composition in the hard core of the quenched jet. For pT}},
  author       = {{Adam, J. and Christiansen, Peter and Ljunggren, Martin and Oskarsson, Anders and Richert, Tuva and Silvermyr, David and Sogaard, Carsten and Stenlund, Evert and Vislavicius, Vytautas and Zyzak, M.}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{3}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at s NN =2.76 TeV}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.93.034913}},
  doi          = {{10.1103/PhysRevC.93.034913}},
  volume       = {{93}},
  year         = {{2016}},
}