Measurements of heavy-flavour decay leptons in pp, p-Pb, and Pb-Pb collisions with ALICE

We present measurements of electrons and muons originating from the semi-leptonic decays of heavy-flavour hadrons at central and forward rapidities with ALICE in pp (root s = 2.76 and 7 TeV), p-Pb (root s(NN) = 5.02 TeV), and Pb-Pb (s(NN) = 2.76 TeV) collisions. The measured PT-differential production cross sections in pp collisions, the nuclear modification factors in p-Pb and Pb-Pb, and the nu(2) measurements in Pb-Pb collision are disgusted. In addition, the angular correlation distribution between heavy-flavour decay electrons and charged particles, measured in p-Pb collisions, is shown. The results are compared to their corresponding theoretical predictions.