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David Silvermyr

David Silvermyr

Senior lecturer

David Silvermyr

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

Author

  • J. Adam
  • Peter Christiansen
  • Martin Ljunggren
  • Anders Oskarsson
  • Tuva Richert
  • David Silvermyr
  • Carsten Sogaard
  • Evert Stenlund
  • Vytautas Vislavicius
  • M. Zyzak

Summary, in English

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

Department/s

  • eSSENCE: The e-Science Collaboration
  • Particle and nuclear physics

Publishing year

2016

Language

English

Publication/Series

Physical Review C

Volume

93

Issue

3

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 2469-9985