Vector meson production at √s = 7TeV and at √s = 2.76 TeV measured with the ALICE detector

Vector mesons are key probes of the hot and dense state of strongly interacting matter produced in heavy ion collisions. Their dilepton decay channel is particularly suitable for these studies, since dileptons have negligible final state interactions in QCD matter. We present the absolute production cross sections of φ and ω mesons measured with the ALICE muon spectrometer in the rapidity range 2.5 < y < 4 in pp collisions at √s = 7TeV and at √s = 2.76TeV, and the φ/(ρ+ω) ratio measured in Pb-Pb collisions at √sNN = 2.76TeV.