Direct Photon Production in p+p and d+Au Collisions Measured with the PHENIX Experiment

Details Direct Photon Production in p+p and d+Au Collisions Measured with the PHENIX Experiment Direct Photon Production in p+p and d+Au Collisions Measured with the PHENIX Experiment

2006-09-20

arxiv.org/abs/hep-ex/0609037v1

Nucl.Phys.A783:577-582,2007

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 5 figures, proceedings of the Hard Probes 2006 conference, Asilomar, Pacific Grove, California

Scientific paper

10.1016/j.nuclphysa.2006.11.120

Direct photon yield measured in p+p and d+Au collisions at \sqrt{s} = 200 GeV with the PHENIX experiment is presented and compared to pQCD predictions. In the case of p+p collisions both the inclusive and isolated direct photon production cross-sections are measured. Relative contribution of isolated direct photons is somewhat below but still agree within errors with pQCD predictions. In the case of d+Au collisions no modifications due to presence of cold matter are found within errors.

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