The production of low mass dimuons has been measured in Pb-Pb collisions at the SPS (CERN). (phi/(rho+omega)) ratios have been studied with respect to the centrality of the collision. Preliminary results on phi and (rho+omega) multiplicities as a function of the number of participants are presented. Values for the temperature T are deduced from the cross sections studies in the limited transverse mass M-t domain covered by the experimental apparatus.
phi, rho and omega production in Pb-Pb collisions at 158 GeV/c(2) per nucleon
DE FALCO, ALESSANDRO
1999-01-01
Abstract
The production of low mass dimuons has been measured in Pb-Pb collisions at the SPS (CERN). (phi/(rho+omega)) ratios have been studied with respect to the centrality of the collision. Preliminary results on phi and (rho+omega) multiplicities as a function of the number of participants are presented. Values for the temperature T are deduced from the cross sections studies in the limited transverse mass M-t domain covered by the experimental apparatus.
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