Relative J/ψ to ψ Suppression in Proton-Nucleus and Nucleus-Nucleus Collisions

Jörg Hüfner and Boris Kopeliovich
Phys. Rev. Lett. 76, 192 – Published 8 January 1996
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Abstract

We calculate the nuclear suppression for J/ψ and ψ production within a coupled channel approach in the subspace of the J/ψ and ψ states. We are able to explain why (i) J/ψ and ψ show the same suppression from 200 to 800 GeV in proton-nucleus collisions and why (ii) ψ is absorbed more strongly than J/ψ in nucleus-nucleus collisions at 200 GeV. Our numerical result, which includes only interactions with nucleons, accounts for half of the observed suppression in sulfur uranium collisions.

  • Received 6 April 1995

DOI:https://doi.org/10.1103/PhysRevLett.76.192

©1996 American Physical Society

Authors & Affiliations

Jörg Hüfner

  • Institut für Theoretische Physik der Universität, Philosophenweg 19, 69120 Heidelberg, Germany

Boris Kopeliovich

  • Max-Planck Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany
  • and Joint Institute for Nuclear Research, Laboratory of Nuclear Problems, Dubna, 141980 Moscow Region, Russia

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Vol. 76, Iss. 2 — 8 January 1996

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