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

Understand

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.