Abstract
Heavy quarks are produced in early partonic hard scatterings and experience the full history of a heavy-ion collision. Consequently heavy quarks are a good tool to study properties of the hot and dense medium. In proton-proton collisions, the study of the production of heavy quarks provides an important test for perturbative QCD and serves as a reference for heavy ion collisions. Heavy-flavour measurements in the semi-electronic channel are performed with ALICE at midrapidity. We present the measurement of the pT-differential cross section in proton-proton collisions at = 7 TeV, and of the nuclear modification factor and elliptic flow in Pb-Pb collisions at = 2.76 TeV.
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