Pions at Finite Temperature from QCD Sum Rules
High Energy Physics - Phenomenology
2009-10-28 v1
Abstract
The temperature corrections to the current algebra Gell-Mann, Oakes, and Renner (GMOR) relation in are investigated in the framework of QCD sum rules. There are no corrections at leading order in the quark masses. At the next to leading order we find corrections of the form , which are small except near the critical temperature. As a by-product we obtain the temperature behaviour of the pion mass, which is essentially constant, except near the critical temperature where it increases with .
Cite
@article{arxiv.hep-ph/9608396,
title = {Pions at Finite Temperature from QCD Sum Rules},
author = {C. A. Dominguez and M. S. Fetea and M. Loewe},
journal= {arXiv preprint arXiv:hep-ph/9608396},
year = {2009}
}
Comments
Latex file plus 3 figures available upon request. To be published in Phys. Lett. B