Critical behaviour in QCD at finite isovector chemical potential
High Energy Physics - Lattice
2007-05-23 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We report an investigation of criticality in QCD at finite isovector chemical potential, mu_3, and at zero temperature. At the critical point, mu_3^c = m_pi, we find that an uncharged scalar and pseudoscalar and a charged pseudoscalar meson become massless within the resolution of our measurement. The effective long distance theory therefore breaks O(4) symmetry by charged pion condensation. This results in a rising quark number susceptibility. The baryon remains massive, as indicated by a vanishing baryon number susceptibility.
Keywords
Cite
@article{arxiv.hep-lat/0202005,
title = {Critical behaviour in QCD at finite isovector chemical potential},
author = {Sourendu Gupta},
journal= {arXiv preprint arXiv:hep-lat/0202005},
year = {2007}
}
Comments
5 pages, 3 figures