Scaling behavior at the tricritical point in the fermion-gauge-scalar model

Details Scaling behavior at the tricritical point in the fermion-gauge-scalar model Scaling behavior at the tricritical point in the fermion-gauge-scalar model

1996-07-18

arxiv.org/abs/hep-lat/9607036v1

Nucl.Phys.Proc.Suppl. 53 (1997) 702-705

Physics

High Energy Physics

High Energy Physics - Lattice

Talk presented at LATTICE96(other models), 4 pages

Scientific paper

10.1016/S0920-5632(96)00759-1

We investigate a strongly coupled U(1) gauge theory with fermions and scalars on the lattice and analyze whether the continuum limit might be a renormalizable theory with dynamical mass generation. Most attention is paid to the phase with broken chiral symmetry in the vicinity of the tricritical point found in the model. There we investigate the scaling of the masses of the composite fermion and of some bosonic bound states. As a by-product we confirm the mean-field exponents at the endpoint in the U(1)-Higgs model, by analyzing the scaling of the Fisher zeros.

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