Photon production in $\sqrt{s_{NN}}$=200 GeV Au+Au collisions measured by the PHENIX experiment at RHIC

Abstract

Direct photon production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV has been measured in the $p_T$ range of 1$<$$p_T$$<$5 GeV/$c$. The yield as acfunction of centrality is in agreement with published data of the RHIC 2002 run, and with results from a new method that explores very low mass dileptons. The result is compared to several theoretical calculations, and it is found that the measurement is not inconsistent with calculations including thermal photon contributions.

6 pages, 7 figures. Poster proceedings for Quark Matter Conference 2005, held in Budapest, Hungary, Aug 4-9, 2005. To be appeared in Acta Physica Hungarica, Nuclear Science, Heavy Ion Physics A. Revised along Referee's comments

References in corpus (4)

• Nuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss in Au+Au Collisions at sqrt(s_NN)=200 GeV
• Probing the QCD equation of state with thermal photons in nucleus-nucleus collisions at RHIC
• Centrality Dependence of Direct Photons in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Measurement of neutral pions in $\sqrt{s_{\mathrm{NN}}}$=200GeV and 62.4GeV Au+Au collisions at RHIC-PHENIX