Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-07-22
Nucl.Phys.A830:459c-462c,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 4 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee
Scientific paper
10.1016/j.nuclphysa.2009.10.040
Jet-quenching and photon production at high transverse momentum are studied at RHIC energies, together with the correlation between jets and photons. The energy loss of hard partons traversing the hot QGP is evaluated in the AMY formalism, consistently taking into account both induced gluon emission and elastic collisions. The production of high $p_T$ photons in Au+Au collisions is calculated, incorporating a complete set of photon-production channels. Putting all these ingredients together with a (3+1)-dimensional ideal relativistic hydrodynamical description of the thermal medium, we achieve a good description of the current experimental data. Our results illustrate that the interaction between hard jets and the soft medium is important for a complete understanding of jet quenching, photon production, and photon-hadron correlations in relativistic nuclear collisions.
Gale Charles
Jeon Sangyong
Moore Guy D.
Qin Guang-You
Ruppert Jorg
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