Issue Eur. Phys. J. C Volume 61, Number 4, June 2009 Hard Probes 2008 Page(s) 819 - 823 Section Regular Article - Theoretical Physics DOI 10.1140/epjc/s10052-008-0841-x Published online 09 January 2009

Eur. Phys. J. C 61, 819-823 (2009)
DOI: 10.1140/epjc/s10052-008-0841-x

Radiative and collisional energy loss, and photon-tagged jets at RHIC

G.-Y. Qin, J. Ruppert, C. Gale, S. Jeon and G. D. Moore

Department of Physics, McGill University, 3600 University, Montreal, QC, H3A 2T8, Canada

qing@physics.mcgill.ca

Received 13 September 2008 / Published online 9 January 2009

Abstract

The suppression of single jets at high transverse momenta in a quark–gluon plasma is studied at RHIC energies, and the additional information provided by a photon tag is included. The energy loss of hard jets traversing through the medium is evaluated in the AMY formalism, by consistently taking into account the contributions from radiative events and from elastic collisions at leading order in the coupling. The strongly interacting medium in these collisions is modeled with (3+1)-dimensional ideal relativistic hydrodynamics. Putting these ingredients together with a complete set of photon-production processes, we present a calculation of the nuclear modification of single jets and photon-tagged jets at RHIC.

PACS
25.75.Nq
12.38.Mh

Correspondence: qing@physics.mcgill.ca


© Società Italiana di Fisica, Springer-Verlag 2009

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