Some Applications of Hard Thermal Loop Perturbation Theory in Quark Gluon Plasma
Abstract
This thesis is mainly devoted to the study of thermodynamics for quantum Chromodynamics. In this thesis I apply hard-thermal-loop perturbation theory, which is a gauge-invariant reorganization of the conventional perturbative expansion for quantum gauge theories to study the thermodynamics of QCD in leading-order, next-to-leading-order and next-to-next-to-leading order at finite temperature and finite chemical potential. I also discuss about various order diagonal and off-diagonal quark number susceptibilities in leading order as well as beyond leading order. For all the observables, I compare our results with available lattice QCD data and we find good agreement. Along with the computation of thermodynamic quantities of hot and dense matter, I also discuss about low mass dilepton rate from hot and dense medium using both perturbative and non-perturbative models and compare them with those from lattice gauge theory and in-medium hadron gas.
Keywords
Cite
@article{arxiv.1407.2473,
title = {Some Applications of Hard Thermal Loop Perturbation Theory in Quark Gluon Plasma},
author = {Najmul Haque},
journal= {arXiv preprint arXiv:1407.2473},
year = {2015}
}
Comments
248 pages, 54 figures, doctoral thesis submitted and defended at Homi Bhabha National Institute; v2:references added, some typos fixed, few minor revisions