文摘
The ALICE experiment at the LHC has studied inclusive production at central and forward rapidities in pp collisions at . In this Letter, we report on the first results obtained detecting the through the dilepton decay into and pairs in the rapidity ranges and , respectively, and with acceptance down to zero . In the dielectron channel the analysis was carried out on a data sample corresponding to an integrated luminosity and the number of signal events is ; the corresponding figures in the dimuon channel are and . The measured production cross sections are and . The differential cross sections, in transverse momentum and rapidity, of the were also measured.