Chiral Symmetry in Two-Color QCD at Finite Temperature

Preprint

21 December 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9912446

Abstract

We study the chiral symmetry in two-color QCD with N massless flavors at finite temperature, using an effective theory. For the gauge group SU(2), the chiral symmetry is enlarged to SU(2N), which is then spontaneously broken to Sp(2N) at zero temperature. At finite temperature, and when the axial anomaly can be neglected, we find a first order phase transition occurring for two or more flavors. In the presence of instantons, the symmetry restoration unambiguously remains first order for three or more massless flavors. These results could be relevant for lattice studies of chiral symmetry at finite temperature and density.

Keywords

FINITE TEMPERATURE
PHASE TRANSITION
SYMMETRY IN TWO
CHIRAL SYMMETRY
TWO COLOR QCD
TEMPERATURE

All Related Versions

Version 1, 1999-12-21, ArXiv
Published version: Physical Review D, 62 (4).

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