Relative {ital J}/{psi} to {psi}{prime} suppression in proton-nucleus and nucleus-nucleus collisions

Journal Article · Sun Dec 31 23:00:00 EST 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.192· OSTI ID:277383

Huefner, J ^[1]; Kopeliovich, B ^[2]

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1. Institut fuer Theoretische Physik der Universitaet, Philosophenweg 19, 69120 Heidelberg (Germany)
2. Max-Planck Institut fuer Kernphysik, Postfach 103980, 69029 Heidelberg (Germany)

We calculate the nuclear suppression for {ital J}/{psi} and {psi}{prime} production within a coupled channel approach in the subspace of the {ital J}/{psi} and {psi}{prime} states. We are able to explain why (i) {ital J}/{psi} and {psi}{prime} show the same suppression from 200 to 800 GeV in proton-nucleus collisions and why (ii) {psi}{prime} is absorbed more strongly than {ital J}/{psi} 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. {copyright} {ital 1996 The American Physical Society.}

• Sponsoring Organization: USDOE
• OSTI ID: 277383
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COUPLED CHANNEL THEORY
HEAVY ION REACTIONS
J PSI-3097 MESONS
NUCLEAR MATTER
NUCLEONS
PARTICLE PRODUCTION
PROTON REACTIONS
RESONANCE
SULFUR 32 REACTIONS
URANIUM 238 TARGET
WAVE PROPAGATION