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

Abstract

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.

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

References in corpus (1)

• A new critical study of photon production in hadronic collisions

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• Measurement of ${\pi }^0$ and $\gamma$ in d+Au collisions at $\sqrt{s_{NN}}=$ 200 GeV by PHENIX experiment