CHIRAL SYMMETRY-BREAKING AND SCALING PROPERTIES OF (2+1)-DIMENSIONL QED WITH 4-FERMION INTERACTIONS

We study the chiral symmetry-breaking (2 + 1)-dimensional quantum electrodynamics with four-fermion interactions. Solving the Dyson-Schwinger equation with a boundary condition identical to an _equation of state, we determine the phase diagram of this model and obtain a large anomalous dimension of the operator psipsiBAR. By substituting a symmetry-breaking solution in the equation of state, we find the critical exponents and show that they satisfy the hyperscaling laws. Some comments are given on the equation of hierarchy between the chiral symmetry-breaking scale and the fundamental scale in our model.
Publisher
Canadian Science Publishing
Issue Date
1993
Language
ENG
Keywords

CRITICAL-BEHAVIOR; GAUGE-THEORIES; EQUATION; MASS

Citation

CANADIAN JOURNAL OF PHYSICS, v.71, no.7-8, pp.398 - 402

ISSN
0008-4204
URI
http://hdl.handle.net/10203/57365
Appears in Collection
PH-Journal Papers(저널논문)
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