Hydrodynamic Description of Dilepton Production

Understand

The first part of this thesis focuses on the production of thermal dileptons from a hadronic gas at finite temperature.

• The rates are calculated by an expansion in Pion density and constrained by broken chiral symmetry and vacuum correlation functions, many of which have been measured by experiment.
• We focus on emission processes having two Pions in the final state.
• Next, follows a separate discussion on viscous hydrodynamics and its effect on $p_\perp$ spectra and elliptic flow.