Centrality dependence of high-p(T) D meson suppression in Pb-Pb collisions at root s(NN)=2.76 TeV


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Adam J., Adamova D., Aggarwarl M. M., Rinella G. A., Agnello M., Agrawal N., ...More

JOURNAL OF HIGH ENERGY PHYSICS, vol.2015, no.11, pp.1-24, 2015 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 2015 Issue: 11
  • Publication Date: 2015
  • Doi Number: 10.1007/jhep11(2015)205
  • Journal Name: JOURNAL OF HIGH ENERGY PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1-24
  • Keywords: Charm physics, Heavy Ions, Heavy-ion collision, RADIATIVE ENERGY-LOSS, HEAVY-QUARK, JET SUPPRESSION, FLAVOR, LHC, TRANSPORT
  • Bursa Uludag University Affiliated: No

Abstract

The nuclear modification factor, R-AA, of the prompt charmed mesons D-0, D+ and D*+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy root s(NN) = 2 : 76 TeV in two transverse momentum intervals, 5 < p(T) < 8 GeV/c and 8 < p(T) < 16 GeV/c, and in six collision centrality classes. The R-AA shows a maximum suppression of a factor of 5{6 in the 10% most central collisions. The suppression and its centrality dependence are compatible within uncertainties with those of charged pions. A comparison with the R-AA of non-prompt J/psi from B meson decays, measured by the CMS Collaboration, hints at a larger suppression of D mesons in the most central collisions.