A Critical Surface of Chiral-invariant System with Gauge Boson and Fermions
She-Sheng XUE
Abstract
In the chirally-invariant context of the Uem(1) gauge interaction and four-fermion interactions for ordinary and mirror fermions, the Schwinger-Dyson equation for the fermion self-energy function is studied on a lattice. We find that a sensible infrared limit can be defined on a critical surface, which is consistent with the critical line found in the continuum theory.
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