Suppression of high transverse momentum D mesons in central Pb-Pb collisions at root s(NN)=2.76 TeV


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Abelev B., Adam J., Adamova D., Adare A. M., Aggarwal M. M., Rinella G. A., ...Daha Fazla

JOURNAL OF HIGH ENERGY PHYSICS, cilt.2012, sa.9, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 2012 Sayı: 9
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1007/jhep09(2012)112
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Heavy Ions, RADIATIVE ENERGY-LOSS, QUARK-GLUON PLASMA, HEAVY-QUARK, JET PRODUCTION, PERSPECTIVE, SPECTRA, MATTER, PP
  • Bursa Uludağ Üniversitesi Adresli: Hayır

Özet

The production of the prompt charm mesons D-0, D+, D*(+), and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy root s(NN) = 2.76 TeV per nucleon-nucleon collision. The p(t)-differential production yields in the range 2 < p(t) < 16 GeV/c at central rapidity, vertical bar y vertical bar < 0.5, were used to calculate the nuclear modification factor R-AA with respect to a proton-proton reference obtained from the cross section measured at root s = 7 TeV and scaled to root s = 2.76 TeV. For the three meson species, R-AA shows a suppression by a factor 3-4, for transverse momenta larger than 5 GeV/c in the 20% most central collisions. The suppression is reduced for peripheral collisions.