Direct Photon Production in p+p and d+Au Collisions Measured with the PHENIX Experiment
D. Peressounko
Abstract
Direct photon yield measured in p+p and d+Au collisions at 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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