The production of muons from heavy-flavour hadron decays in pâPb collisions at sNN=5.02 TeV was studied for 2<pT<16 GeV/c with the ALICE detector at the CERN LHC. The measurement was performed at forward (p-going direction) and backward (Pb-going direction) rapidity, in the ranges of rapidity in the centre-of-mass system (cms) 2.03<ycms<3.53 and â4.46<ycms<â2.96, respectively. The production cross sections and nuclear modification factors are presented as a function of transverse momentum (pT). At forward rapidity, the nuclear modification factor is compatible with unity while at backward rapidity, in the interval 2.5<pT<3.5 GeV/c, it is above unity by more than 2Ï. The ratio of the forward-to-backward production cross sections is also measured in the overlapping interval 2.96<|ycms|<3.53 and is smaller than unity by 3.7Ï in 2.5<pT<3.5 GeV/c. The data are described by model calculations including cold nuclear matter effects.
|Titolo:||Production of muons from heavy-flavour hadron decays in pâPb collisions at sNN=5.02 TeV|
|Data di pubblicazione:||2017|
|Appare nelle tipologie:||1.1 Articolo in rivista|