Direct-Photon Production in Au+Au Collisions at RHIC
Abstract
Results from the PHENIX experiment on direct-photon production in Au+Au collisions at sqrt{s_{NN}} = 200 GeV for transverse momenta 1 < p_T < 13 GeV/c are presented. Direct-photon yields at high p_T scale as expected for particle production in hard processes. This supports jet-quenching models which attribute the suppression of high-p_T hadrons to the energy loss of fast partons in the quark-gluon plasma. The low-p_T direct-photon spectra, measured via e+e- pairs with small invariant masses, are possibly related to the production of thermal direct photons in Au+Au collisions at RHIC.
Cite
@article{arxiv.nucl-ex/0608043,
title = {Direct-Photon Production in Au+Au Collisions at RHIC},
author = {Klaus Reygers},
journal= {arXiv preprint arXiv:nucl-ex/0608043},
year = {2019}
}
Comments
5 pages, 3 figures, to appear in the proceedings of the 9th Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2006), Puerto Rico, 30 May - 3 June 2006