First results are reported on J/ψ and Drell-Yan cross-sections in Pb-Pb reactions at 158 GeV/c per nucleon. The ratio of cross-sections σ(J/ψ)/σ(DY) is studied as a function of the impact parameter of the collision estimated from the measured transverse energy.
J/psi and Drell-Yan cross-sections in PbPb interactions at 158 GeV/c per nucleon
BEOLE', Stefania;CHIAVASSA, Emilio Luciano;GALLIO, Mauro;MASERA, Massimo;VERCELLIN, Ermanno;
1997-01-01
Abstract
First results are reported on J/ψ and Drell-Yan cross-sections in Pb-Pb reactions at 158 GeV/c per nucleon. The ratio of cross-sections σ(J/ψ)/σ(DY) is studied as a function of the impact parameter of the collision estimated from the measured transverse energy.
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