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., ...Daha Fazla

JOURNAL OF HIGH ENERGY PHYSICS, cilt.2015, sa.11, ss.1-24, 2015 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 2015 Sayı: 11
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1007/jhep11(2015)205
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1-24
  • Anahtar Kelimeler: Charm physics, Heavy Ions, Heavy-ion collision, RADIATIVE ENERGY-LOSS, HEAVY-QUARK, JET SUPPRESSION, FLAVOR, LHC, TRANSPORT
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

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.