Do lattice data constrain the vector interaction strength of QCD?
Nuclear Theory
2014-08-08 v2 High Energy Physics - Phenomenology
Abstract
We show how repulsive interactions of deconfined quarks as well as confined hadrons have an influence on the baryon number susceptibilities and the curvature of the chiral pseudo critical line in effective models of QCD. We discuss implications and constraints for the vector interaction strength from comparisons to lattice QCD and comment on earlier constraints, extracted from the curvature of the transition line of QCD and compact star observables. Our results clearly point to a strong vector repulsion in the hadronic phase and near-zero repulsion in the deconfined phase.
Cite
@article{arxiv.1401.4051,
title = {Do lattice data constrain the vector interaction strength of QCD?},
author = {Jan Steinheimer and Stefan Schramm},
journal= {arXiv preprint arXiv:1401.4051},
year = {2014}
}
Comments
6 pages 4 figures 1 table, Version accepted by PLB