Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1998-12-20
Phys.Lett. B459 (1999) 455-460
Physics
Nuclear Physics
Nuclear Theory
LaTeX2e, 7 pages, 4 PS figures. Typos removed, minor changes
Scientific paper
10.1016/S0370-2693(99)00730-3
Measured J/Psi production cross sections for 200 and 450 GeV/c protons incident on a variety of nuclear targets are analyzed within a Glauber framework which takes into account energy loss of the beam proton, the time delay of particle production due to quantum coherence, and absorption of the J/Psi on nucleons. The best representation is obtained for a coherence time of 0.5 fm/c, previously determined by Drell-Yan production in proton-nucleus collisions, and an absorption cross section of 3.6 mb, which is consistent with the value deduced from photoproduction of the J/Psi on nuclear targets.
Gale Charles
Jeon Sangyong
Kapusta Joseph
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