Speaker
Description
Dileptons are an important electromagnetic probe of hot and dense QCD matter and are widely regarded as an effective thermometer of heavy-ion collisions. In this work, we investigate dilepton production from an isospin-asymmetric hot and dense quark medium in order to explore the role of isospin imbalance on electromagnetic radiation. We focus in particular on modifications of the dilepton production rate associated with the onset of pion condensation, which is naturally realized in the presence of a finite isospin chemical potential. The analysis is carried out within the Nambu–Jona-Lasinio model, where dynamical mass generation and mesonic excitations self-consistently encode the effects of isospin asymmetry. Our study aims to assess the sensitivity of dilepton spectra to pion-condensed phases of QCD matter, with relevance for futuristic lower-energy heavy-ion collision experiments as well as isospin-rich environments such as neutron star matter.
