Electromagnetic radiation from relativistic nuclear collisions

Abstract

We review some of the results obtained in the study of the production of electromagnetic radiation in relativistic nuclear collisions. We concentrate on the emission of real photons and dileptons from the hot and dense strongly interacting phases of the reaction. We examine the contributions from the partonic sector, as well as those from the nonperturbative hadronic sector. We examine the current data, some of the predictions for future measurements, and comment on what has been learnt so far.

Invited review for QGP3, R. Hwa and X.-N. Wang eds; references added and typographical errors corrected in v2; Minor corrections v3

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• Thermal photons in QGP and non-ideal effects
• Causal Viscous Hydrodynamics for Relativistic Heavy Ion Collisions
• The Vector Probe in Heavy-Ion Reactions
• The thermal nature of high p_T photons in high energy nuclear collisions
• Elliptic Flow of Particles under the Influence of Electromagnetic Field Evolution in Relativistic Heavy Ion Collision