Strongly coupled U(1) lattice gauge theory as a microscopic model of Yukawa theory

Abstract

Dynamical chiral symmetry breaking in a strongly coupled U(1) lattice gauge model with charged fermions and scalar is investigated by numerical simulation. Several composite neutral states are observed, in particular a massive fermion. In the vicinity of the tricritical point of this model we study the effective Yukawa coupling between this fermion and the Goldstone boson. The perturbative triviality bound of Yukawa models is nearly saturated. The theory is quite similar to strongly coupled Yukawa models for sufficiently large coupling except the occurrence of an additional state -- a gauge ball of mass about half the mass of the fermion.

4 pages

References in corpus (1)

• Dynamical fermion mass generation at a tricritical point in strongly coupled U(1) lattice gauge theory

Cited by in corpus (4)

• Strongly coupled lattice gauge theory with dynamical fermion mass generation in three dimensions
• Dynamical fermion mass generation at a tricritical point in strongly coupled U(1) lattice gauge theory
• New universality class of chiral symmetry breaking in the strongly coupled U(1) $\chi U\varphi$ model
• Renormalization of strongly coupled U(1) lattice gauge theories