Radiative and Collisional Energy Loss, and Photon-Tagged Jets at RHIC

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 modelled 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.

4 pages, 4 figures, contributed to the 3rd International Conference on Hard and Electro-Magnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2008), typos corrected, published version

References in corpus (5)

• Space-time evolution of bulk QCD matter
• Radiative and Collisional Jet Energy Loss in the Quark-Gluon Plasma at RHIC
• Electromagnetic radiation from nuclear collisions at RHIC energies
• Systematic Study of High-pT Direct Photon Production with the PHENIX Experiment at RHIC
• Radiative jet energy loss in a three-dimensional hydrodynamical medium and high $p_T$ azimuthal asymmetry of ${\pi }_0$ suppression at mid and forward rapidity at RHIC