Photon emission rates near the critical point in the linear sigma model

Abstract

Employing the linear sigma model, the effective masses of quasi-particle excitations are found to exhibit significant variations within the phase diagram, which has a critical point at non-zero chemical potential, where a first-order phase transition sets in. Soft-photon emission rates in lowest order display, for selected channels, a sensible dependence on the effective masses of the involved excitations and let us argue that they could map out the phase diagram.

9th International Workshop on Critical Point and Onset of Deconfinement - CPOD2014 17-21 November 2014

References in corpus (4)

• Production and Elliptic Flow of Dileptons and Photons in the semi-Quark Gluon Plasma
• Universal Parametrization of Thermal Photon Rates in Hadronic Matter
• The phase structure of QCD for heavy quarks
• Photon emission within the linear sigma model