Centrality dependence of direct photon production in root s(NN) = 200 GeV Au+Au collisions.

By P. Adler, et al. 2005

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The first measurement of direct photons in Au+Au collisions at {radical}(s{sub NN})=200 GeV is presented. The direct photon signal is extracted as a function of the Au+Au collision centrality and compared to next-to-leading order perturbative quantum chromodynamics calculations. The direct photon yield is shown to scale with the number of nucleon-nucleon collisions for all centralities.

Subfields: Aerospace Engineering, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/4e4d2f3fe73c75895e128e6b96fa6ddaf327cbf5

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