arXiv:hep-lat/9509040·v1·High Energy Physics — Lattice
Magnetic and chiral universality classes in a 3D Yukawa model
E. Focht🇩🇪 · J. Jersak🇩🇪 · J. Paul (HLRZ Juelich and RWTH Aachen)🇩🇪
Abstract
The 3D Yukawa model with U(1) chiral symmetry is investigated in a broad interval of parameters using the Binder method. Critical exponents of the Wilson-Fisher (magnetic) and Gross-Neveu (chiral) universality classes are measured. The model is dominated by the chiral universality class. However at weak coupling we observe a crossover between both classes, manifested by difficulties with the Binder method which otherwise works well.
Comments: 4 pages, contribution to LATTICE 95