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arXiv · 0801.0220

J/psi Production in sqrt (s_NN)= 200 GeV Cu+Cu Collisions

PHENIX Collaboration·A. Adare
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Abstract

Yields for J/psi production in Cu+Cu collisions at sqrt (s_NN)= 200 GeV have been measured by the PHENIX experiment over the rapidity range |y| < 2.2 at transverse momenta from 0 to beyond 5 GeV/c. The invariant yield is obtained as a function of rapidity, transverse momentum and collision centrality, and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data provide greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, providing a key constraint that is needed for disentangling cold and hot nuclear matter effects.

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PHENIX Collaboration, A. Adare. 2009-01-14. J/psi Production in sqrt (s_NN)= 200 GeV Cu+Cu Collisions. https://doi.org/10.1103/physrevlett.101.122301

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