Multicritical Points in a Lattice Yukawa Model with the Wilson-Yukawa Coupling

T. Ebihara, K. -I. Kondo

For a lattice regularized chiral-invariant $SU(2{)}_L\times SU(2{)}_R$ fermion-scalar model with a Yukawa coupling $y$ and a Wilson-Yukawa coupling $w$, we investigate the phase struct…