Journal Article Production of muons from heavy-flavour hadron decays in p–Pb collisions at √sNN=5.02TeV

ALICE Collaboration  ,  Busch, O.  ,  Chujo , T.  ,  Esumi , S.  ,  Miake, Y.

770pp.459 - 472 , 2017-07 , Elsevier
The production of muons from heavy-flavour hadron decays in p–Pb collisions at View the MathML sourcesNN=5.02 TeV was studied for 2<pT<162<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<3.532.03<ycms<3.53 and −4.46<ycms<−2.96−4.46<ycms<−2.96, respectively. The production cross sections and nuclear modification factors are presented as a function of transverse momentum (pTpT). At forward rapidity, the nuclear modification factor is compatible with unity while at backward rapidity, in the interval 2.5<pT<3.52.5<pT<3.5 GeV/c, it is above unity by more than 2σ . The ratio of the forward-to-backward production cross sections is also measured in the overlapping interval 2.96<|ycms|<3.532.96<|ycms|<3.53 and is smaller than unity by 3.7σ in 2.5<pT<3.52.5<pT<3.5 GeV/c. The data are described by model calculations including cold nuclear matter effects.

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