Phase Diagram of a Lattice $SU(2)\times SU(2)$ Scalar-Fermion Model Using the Zaragoza Fermions

Abstract

We present a calculation of the phase diagram of a $SU(2)\times SU(2)$ chiral Yukawa model with massless decoupled doublers, using a saddle point approach, both for small and large Yukawa coupling. Some preliminary MonteCarlo results are also shown.

Comments: 3 pages + 2 figs.; Ref. DFTUZ 93/18, Lattice'93 talk