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

S Acharya, D. Adamova, M.M Aggarwal, G Aglieri Rinella, M. Agnello, N Agrawal, Peter Christiansen, Martin Ljunggren, Anders Oskarsson, Tuva Richert, David Silvermyr, Evert Stenlund, Vytautas Vislavicius, ALICE Collaboration

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Abstract

The production of muons from heavy-flavour hadron decays in p–Pb 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 −4.46<ycms<−2.96, 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 2σ. 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 3.7σ in 2.5<pT<3.5 GeV/c. The data are described by model calculations including cold nuclear matter effects. © 2017 The Author(s)
Original languageEnglish
Pages (from-to)459-472
Number of pages14
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume770
DOIs
Publication statusPublished - 2017

Bibliographical note

Cited By :1

Export Date: 24 January 2018

Subject classification (UKÄ)

  • Subatomic Physics

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