Charge fluctuations in chiral models and the QCD phase transition
High Energy Physics - Phenomenology
2015-05-30 v1
Abstract
We consider the Polyakov loop-extended two flavor chiral quark--meson model and discuss critical phenomena related with the spontaneous breaking of the chiral symmetry. The model is explored beyond the mean-field approximation in the framework of the functional renormalisation group. We discuss properties of the net-quark number density fluctuations as well as their higher cumulants. We show that with the increasing net-quark number density, the higher order cumulants exhibit a strong sensitivity to the chiral crossover transition. We discuss their role as probes of the chiral phase transition in heavy-ion collisions at RHIC and LHC.
Cite
@article{arxiv.1108.1300,
title = {Charge fluctuations in chiral models and the QCD phase transition},
author = {V. Skokov and B. Friman and F. Karsch and K. Redlich},
journal= {arXiv preprint arXiv:1108.1300},
year = {2015}
}
Comments
4 pages, 3 figures, to appear in the proceedings of Quark Matter 2011, 23-28 May 2011, Annecy, France