paper

Magnetic and chiral universality classes in a 3D Yukawa model

arXiv:hep-lat/9509040 · doi:10.1016/0920-5632(96)00156-9

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.

4 pages, contribution to LATTICE 95