Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

9-2008

Journal or Book Title

Physical Review Letters

Volume

101

Issue

12

First Page

122301

DOI

10.1103/PhysRevLett.101.122301

Abstract

Yields for J/psi production in Cu+Cu collisions at root s(NN) = 200 GeV have been measured over the rapidity range |y|< 2.2 and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data offer greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, in the range where the quark-gluon plasma transition threshold is predicted to lie. Cold nuclear matter estimates based on ad hoc fits to d+Au data describe the Cu+Cu data up to N-part similar to 50, corresponding to a Bjorken energy density of at least 1.5 GeV/fm(3).

Comments

This article is published as Adare, A., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh, J. Alexander et al. "J/ψ production in s N N= 200 GeV Cu+ Cu collisions." Physical review letters 101, no. 12 (2008): 122301. DOI:10.1103/PhysRevLett.101.122301. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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