Effect of heavy-quark energy loss on the muon differential production cross section in Pb-Pb collisions at \sqrtsNN=5.5 TeV

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dc.creatordel Valle, Z. Conesa
dc.creatorDainese, A.
dc.creatorDing, H. -T.
dc.creatorGarcía, G. Martínez
dc.creatorZhou, D. C.
dc.date2007-12-01
dc.date2008-03-13
dc.date.accessioned2026-07-07T11:39:05Z
dc.date.available2026-07-07T11:39:05Z
dc.descriptionWe study 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. We consider two pseudo-rapidity ranges covered by the LHC experiments: $|η|<2.5$ and $2.5<η<4$. 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. We compute the heavy quark contributions using available pQCD-based programs. We include the nuclear shadowing modification of the parton distribution functions and the in-medium radiative energy loss for heavy quarks, using the mass-dependent BDMPS quenching weights. Muons from W and Z leptonic decays, that dominate the yield at high pt, can be used as a medium-blind reference to observe the medium-induced suppression of beauty quarks.
dc.identifierhttps://arxiv.org/abs/0712.0051
dc.identifierhttp://arxiv.org/abs/0712.0051
dc.identifierPhys.Lett.B663:202-208,2008
dc.identifierdoi:10.1016/j.physletb.2008.03.073
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199789
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEffect of heavy-quark energy loss on the muon differential production cross section in Pb-Pb collisions at \sqrtsNN=5.5 TeV
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