Open Heavy Flavor Production in p-p and Pb-Pb collisions as seen by ALICE at the LHC

Details Open Heavy Flavor Production in p-p and Pb-Pb collisions as seen by ALICE at the LHC Open Heavy Flavor Production in p-p and Pb-Pb collisions as seen by ALICE at the LHC

2011-10-09

arxiv.org/abs/1110.1883v1

Physics

High Energy Physics

High Energy Physics - Experiment

To appear in the Proceedings of the 19th Particles and Nuclei International Conference, PANIC 2011

Scientific paper

Charm and beauty production are probed with the ALICE experiment at the LHC by studying the single lepton transverse momentum distribution (electrons at mid-rapidity, muons at large-rapidities) and D mesons reconstructed in their hadronic decays. The differential production cross sections in proton proton interactions show a good agreement with perturbative QCD calculations at both sqrt(s) = 2.76 and 7 TeV. The measurements in lead lead reactions at sqrt(s_{NN})= 2.76 TeV evidence a reduction (or suppression) of the production rate at intermediate and high pt in the most central collisions with respect to the rate in proton proton interactions.

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