Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb–Pb collisions at √sNN=5.02 and 2.76 TeV
dc.contributor.author | Acharya, Shreyasi | pt_BR |
dc.contributor.author | Gay Ducati, Maria Beatriz | pt_BR |
dc.contributor.author | Pereira, Luis Gustavo | pt_BR |
dc.contributor.author | Pezzi, Rafael Peretti | pt_BR |
dc.contributor.author | ALICE Collaboration | pt_BR |
dc.date.accessioned | 2022-02-16T04:31:04Z | pt_BR |
dc.date.issued | 2021 | pt_BR |
dc.identifier.issn | 0370-2693 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/235213 | pt_BR |
dc.description.abstract | Measurements of the production of muons from heavy-flavour hadron decays in Pb–Pb collisions at √sNN = 5.02 and 2.76 TeV using the ALICE detector at the LHC are reported. The nuclear modification factor RAA at √sNN = 5.02 TeV is measured at forward rapidity (2.5 < y < 4) as a function of transverse momentum pT in central, semi-central, and peripheral collisions over a wide pT interval, 3 < pT < 20 GeV/c, in which muons from beauty-hadron decays are expected to take over from charm as the dominant source at high pT (pT > 7 GeV/c). The RAA shows an increase of the suppression of the yields of muons from heavy-flavour hadron decays with increasing centrality. A suppression by a factor of about three is observed in the 10% most central collisions. The RAA at √sNN = 5.02 TeV is similar to that at √sNN = 2.76 TeV. The precise RAA measurements have the potential to distinguish between model predictions implementing different mechanisms of parton energy loss in the high-density medium formed in heavy-ion collisions. They place important constraints for the understanding of the heavy-quark interaction with the hot and dense QCD medium. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physics letters. B. Amsterdam. Vol. 820 (Sept. 2021), 136558, 15 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Colisao de ions pesados | pt_BR |
dc.subject | Muons | pt_BR |
dc.title | Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb–Pb collisions at √sNN=5.02 and 2.76 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001134624 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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