Related paper Production of muons from heavy flavour decays at forward rapidity in pp and Pb-Pb collisions at $\sqrt {s_{NN}}$ = 2.76 TeV $\RAA$ of muons fromheavy flavor decays as a function of the mean number of participating nucleons, in $2.5 < y < 4$ and $ 6 < \pt < 10$ GeV. The horizontal bars indicate the uncertainty on $\langle N_{\rm part} \rangle$.[png] [pdf]