ψ′ production is studied in Pb–Pb collisions at 158 GeV/c per nucleon incident momentum. Absolute cross-sections are measured and production rates are investigated as a function of the centrality of the collision. The results are compared with those obtained for lighter colliding systems and also for the J/ψ meson produced under identical conditions.
psi-prime production in Pb-Pb collisions at 158-GeV/nucleon
BEOLE', Stefania;CHIAVASSA, Emilio Luciano;GALLIO, Mauro;MARZARI CHIESA, Alberta;MASERA, Massimo;VERCELLIN, Ermanno;
2007-01-01
Abstract
ψ′ production is studied in Pb–Pb collisions at 158 GeV/c per nucleon incident momentum. Absolute cross-sections are measured and production rates are investigated as a function of the centrality of the collision. The results are compared with those obtained for lighter colliding systems and also for the J/ψ meson produced under identical conditions.
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