A New Action for Heavy Lattice Fermions

Abstract

I describe a unified formalism for lattice fermions, in which the relativistic action of Wilson and the nonrelativistic and static actions appear as special cases. It is valid at all values of $m_{q}a$, including $m_{q}a\approx 1$. In the limit $m_{q}a\ll 1$, the formulation reduces to the light quark action of Wilson. In the limit $m_{q}a\gg 1$, the formulation reduces to the nonrelativistic action of Thacker and Lepage, and to the static action of Eichten.

Comments: 4 pages. Talk given at DPF92