Chiral dynamics in QCD at finite chemical potential
High Energy Physics - Lattice
2008-11-26 v2 High Energy Physics - Phenomenology
Nuclear Experiment
Nuclear Theory
Abstract
We present the renormalized Taylor expansion of the chiral condensate with chemical potential. The relation with the Taylor coefficients of meson susceptibilities and the quark mass dependence of the quark number susceptibilities are obtained through chiral Ward identities and Maxwell relations. The continuum limit is obtained in quenched and two flavour QCD. In Nf=2 QCD, the quadratic response coefficients (QRCs) of the chiral condensate to chemical potential indicate that pion fluctuations decrease at finite chemical potential toward the critical end point. We discuss how these observables can be used to test other features of the QCD phase diagram.
Keywords
Cite
@article{arxiv.hep-lat/0409126,
title = {Chiral dynamics in QCD at finite chemical potential},
author = {Sourendu Gupta and R. Ray},
journal= {arXiv preprint arXiv:hep-lat/0409126},
year = {2008}
}