Direct photons in d+Au collisions at s_(NN)**(1/2)=200GeV with STAR

Details Direct photons in d+Au collisions at s_(NN)**(1/2)=200GeV with STAR Direct photons in d+Au collisions at s_(NN)**(1/2)=200GeV with STAR

2007-01-15

arxiv.org/abs/nucl-ex/0701022v1

Eur.Phys.J.C49:231-234,2007

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 4 figures, HotQuarks 2006

Scientific paper

10.1140/epjc/s10052-006-0116-3

Results are presented of an ongoing analysis of direct photon production in
s_(NN)=200GeV deuteron-gold collisions with the STAR experiment at RHIC. A
significant excess of direct photons is observed near mid-rapidity 0found to be consistent with next-to-leading order pQCD calculations including
the contribution from fragmentation photons.

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