Production and Suppression of Charmonium in Nuclear Collisions

Details Production and Suppression of Charmonium in Nuclear Collisions Production and Suppression of Charmonium in Nuclear Collisions

1997-08-06

arxiv.org/abs/hep-ph/9708258v1

Phys.Rev.C57:2559-2563,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 2 figures, Revtex

Scientific paper

10.1103/PhysRevC.57.2559

$J/\psi$ production cross section considering the contributions of both color-singlet and color-octet $c\bar c$ channels is calculated. The result is used to study the suppression of $J/\psi$ in nuclear collisions. With absorption cross sections for $(c \bar c)_8$ $\sigma_{abs}^8\simeq 11mb $ and $(c \bar c)_1$ $\sigma_{abs}^1\simeq 0mb $ the p-A and A-B data except for Pb-Pb can be explained. Possible explanations of additional suppression in Pb-Pb are discussed.

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