Abstract
Based on Conesa del Valle et al (2008 Phys. Lett. B 663 202), we present the results for the nuclear modification factors RAA and RCP of the high transverse momentum (5 < pt < 60 GeV/c) distribution of muons in Pb–Pb collisions at LHC energies, in which two pseudo-rapidity ranges covered by the LHC experiments, |η| < 2.5 and 2.5 < η < 4, are investigated. Heavy-quark energy loss is taken into account by mass-dependent BDMPS quenching weights. Muons from semi-leptonic decays of heavy quarks (c and b) and from leptonic decays of weak gauge bosons (W and Z) are the main contributions to the muon pt distribution above a few GeV/c. The muons from W and Z, that dominates the high pt, can be used as a medium-blind reference to observe the medium-induced suppression of beauty quarks.
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