Mean field exponents and small quark masses

Preprint

1 September 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-th/9808076

Abstract

We demonstrate that the restoration of chiral symmetry at finite-T in a class of confining Dyson-Schwinger equation (DSE) models of QCD is a mean field transition, and that an accurate determination of the critical exponents using the chiral and thermal susceptibilities requires very small values of the current-quark mass: log_{10}(m/m_u) < -5. Other classes of DSE models characterised by qualitatively different interactions also exhibit a mean field transition. Incipient in this observation is the suggestion that mean field exponents are a result of the gap equation's fermion substructure and not of the interaction.

Keywords

MEAN FIELD EXPONENTS
SMALL QUARK
QUARK MASS
CHIRAL
DSE
QCD

All Related Versions

Version 1, 1998-09-01, ArXiv
Published version: Physical Review C, 59 (3), 1751.

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