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Centrality Dependence of Direct Photon Production in sqrt(s_NN) = 200 GeV Au+Au Collisions

PHENIX Collaboration·S. S. Adler
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Abstract

The first measurement of direct photons in Au+Au collisions at sqrt(s_NN) = 200 GeV is presented. The direct photon signal is extracted as a function of the Au+Au collision centrality and compared to NLO pQCD calculations. The direct photon yield is shown to scale with the number of nucleon-nucleon collisions for all centralities.

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PHENIX Collaboration, S. S. Adler. 2005-03-07. Centrality Dependence of Direct Photon Production in sqrt(s_NN) = 200 GeV Au+Au Collisions. https://doi.org/10.1103/physrevlett.94.232301

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