LATTICE FERMIONS AND CHIRAL-SYMMETRY

We propose a formulation of lattice fermions with one-sided difference s that is hermitian, chirally symmetric (barring a bare mass term) and completely free of doubling. To obtain the axial anomaly in perturbat ion theory it was necessary to break chiral symmetry on the lattice on ly through a bare mass term for the physical fermion. The chiral limit may be taken once the continuum limit is reached. We comment on the r ole of the mass term with examples elsewhere in field theory.