Photons at RHIC: The role of viscosity and of initial state fluctuations

Details Photons at RHIC: The role of viscosity and of initial state fluctuations Photons at RHIC: The role of viscosity and of initial state fluctuations

2011-07-05

arxiv.org/abs/1107.0889v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at the 22nd International Conference On Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2011), Annecy,

Scientific paper

We study real photons produced in heavy ion collisions at RHIC, and we calculate their spectrum and its azimuthal momentum anisotropy. The photons from a variety of sources are included, and the interplay and the time-evolution of those sources are modelled in a full 3D hydrodynamic simulation. We quantify the v_2 of thermal photons produced in ideal and viscous fluids, and the consequences of using different initial conditions are explored.

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