Chiral symmetry breaking and confinement effects on dilepton and photon production around $T_c$

Understand

Production rates of dileptons and photons from the quark-gluon (QGP) phase are calculated taking into account effects of confinement and spontaneous chiral symmetry breaking (\chi SB) not far from the transition temperature $T_c$.

• We find that the production rates of dileptons with large momenta and of photons originating from the QGP around $T_c$ are suppressed by the \chi SB effect.
• We also discuss to what extent information about details of the chiral transition, such as its characteristic temperature range and the steepness of the crossover, are reflected in these quantities.