Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb-Pb collisions at root s(NN)=5.02 and 2.76 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00549097" target="_blank" >RIV/68378271:_____/21:00549097 - isvavai.cz</a>
Alternative codes found
RIV/61389005:_____/21:00549097 RIV/68407700:21340/21:00354685
Result on the web
<a href="https://doi.org/10.1016/j.physletb.2021.136558" target="_blank" >https://doi.org/10.1016/j.physletb.2021.136558</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2021.136558" target="_blank" >10.1016/j.physletb.2021.136558</a>

Result language
angličtina
Original language name
Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb-Pb collisions at root s(NN)=5.02 and 2.76 TeV
Original language description
Measurements of the production of muons from heavy-flavour hadron decays in Pb-Pb collisions at root s(NN) = 5.02 and 2.76 TeV using the ALICE detector at the LHC are reported. The nuclear modification factor R-AA at root s(NN) = 5.02 TeV is measured at forward rapidity (2.5 < y < 4) as a function of transverse momentum p(T) in central, semi-central, and peripheral collisions over a wide p(T) interval, 3 < p(T) < 20 GeV/c, in which muons from beauty-hadron decays are expected to take over from charm as the dominant source at high p(T) (p(T) > 7 GeV/c). The R-AA 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 R-AA at root s(NN) = 5.02 TeV is similar to that at root s(NN) = 2.76 TeV. The precise R-AA 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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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