Production of muons from heavy flavour decays at forward rapidity in pp and Pb-Pb collisions at s NN − − − − √ = 2.76 TeV
Abstract
The ALICE Collaboration has measured the inclusive production of muons from heavy flavour decays at forward rapidity, 2.5 < y < 4, in pp and Pb-Pb collisions at
s
NN
−
−
−
−
√
= 2.76 TeV. The
p
T
-differential inclusive cross section of muons from heavy flavour decays in pp collisions is compared to perturbative QCD calculations. The nuclear modification factor is studied as a function of pt and collision centrality. A weak suppression is measured in peripheral collisions. In the most central collisions, a suppression of a factor of about 3-4 is observed in 6 <
p
T
< 10 GeV/
c
. The suppression shows no significant
p
T
dependence.