Dilepton production rate near the critical temperature of color superconductivity

Abstract

We investigate modification of the dilepton production rate by the diquark fluctuations that form well-developed collective modes near the critical temperature of color superconductivity. Through the analysis of the photon self-energy called the Aslamasov-Larkin, Maki-Thompson and density of states terms in the theory of metalic superconductivity, it is shown that the collective mode in the diquark channel affects the photon self-energy significantly and thereby gives rise to an anomalous enhacement of the dilepton production rate in the low invariant-mass region.

Comments: 6 pages, 9 figures. Proceedings for the International Conference on Critical Point and Onset of Deconfinement - CPOD2021, 15 - 19 March 2021, Online - zoom