J/psi Production in s(NN)**(1/2) = 200-GeV Cu+Cu Collisions - INSPIRE

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J/psi Production in s(NN)**(1/2) = 200-GeV Cu+Cu Collisions

PHENIX

Collaboration

Jan, 2008

6 pages

Published in:

Phys.Rev.Lett. 101 (2008) 122301

e-Print:

0801.0220 [nucl-ex]

DOI:

10.1103/PhysRevLett.101.122301

Experiments:

BNL-RHIC-PHENIX

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Abstract: (arXiv)

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.

Note:

375 authors from 57 institutions, 6 pages, 4 figures, 1 table. Submitted to Physical Review Letters. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

25.75.Dw
nucleus nucleus: colliding beams
scattering: heavy ion
copper
J/psi(3100): yield
J/psi(3100): leptonic decay
rapidity dependence
transverse momentum dependence
impact parameter: dependence
transverse momentum: moment

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