Vector meson spectral function and dilepton rate in an effective mean field model
High Energy Physics - Phenomenology
2016-03-03 v1 Nuclear Theory
Abstract
We have studied the vector meson spectral function (VMSF) in a hot and dense medium within an effective QCD model namely the Nambu-Jona-Lasinio (NJL) and its Polyakov Loop extended version (PNJL) with and without the effect of isoscalar vector interaction (IVI). The effect of the IVI has been taken into account using the ring approximation. We obtained the dilepton production rate (DPR) using the VMSF and observed that at moderate temperature it is enhanced in the PNJL model as compared to the NJL and Born rate due to the suppression of color degrees of freedom.
Cite
@article{arxiv.1508.04288,
title = {Vector meson spectral function and dilepton rate in an effective mean field model},
author = {Chowdhury Aminul Islam and Sarbani Majumder and Najmul Haque and Munshi G. Mustafa},
journal= {arXiv preprint arXiv:1508.04288},
year = {2016}
}
Comments
5 pages, 7 figures, conference proceedings of the XXI DAE-BRNS HEP Symposium, IIT Guwahati, December 2014; to appear in 'Springer Proceedings in Physics Series'