A Simple Model Approach to Dilepton Production Rate in Relativistic Heavy Ion Collisions

Abstract

We compute the dilepton production rate from deconfined phase of quark-gluon plasma using the quasi-particle model (QPM). The computation is based on an extension of our previous work. In this model, the finite quark mass is replaced by the effective quark mass which is considered as the sum of square of current mass, coupling of thermal and current mass and square of thermal mass. This leads to the modest enhancement in the dilepton production rate. The results indicate that the emission rate is also an increasing function of chemical potential. The study implies that the model results are significantly enhanced with the effective quark mass as compared to thermal quark mass in the low mass region and not altered in the intermediate mass region. So the model using the effective quark mass fits well in the production of dilepton rates.