Impact parameter dependence of J/{psi} and Drell-Yan production in heavy ion collisions at {radical} (s{sub NN}) =17.3thinspGeV

Journal Article · Thu Apr 01 04:00:00 EST 1999 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.59.R1860· OSTI ID:336710

Emelyanov, V; Khodinov, A ^[1]; Klein, S R; Vogt, R ^[2]; Vogt, R ^[3]

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1. Moscow State Engineering Physics Institute (Technical University), Kashirskoe ave. 31, Moscow 115409 (Russia)
2. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
3. Physics Department, University of California, Davis, California 95616 (United States)

In heavy-ion collisions, J/{psi} and Drell-Yan production are expected to be affected by nuclear modifications to the free nucleon structure functions. If these modifications, referred to here as shadowing, are proportional to the local nuclear density, the per nucleon cross sections will depend on centrality. Differences in quark and gluon shadowing will lead to a new source of impact parameter dependence of the J/{psi} to Drell-Yan production ratio. We calculate this ratio in the CERN NA50 acceptance with several shadowing parametrizations to explore its centrality dependence. thinsp {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 336710
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 4 Vol. 59; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
GLUONS
HEAVY ION REACTIONS
IMPACT PARAMETER
J PSI-3097 MESONS
NUCLEAR MATTER
NUCLEONS
PARTON MODEL
QUARKS
STRUCTURE FUNCTIONS