The Charm Quark on the Lattice

Abstract

We formulate lattice fermions in a way that encompasses Wilson fermions as well as the static and non-relativistic approximations. In particular, we treat $m_{q}a$ systematically ($m_q$ is the fermion mass) showing how to understand the Wilson action as an effective action for systems with $\text{vek}p\ll m_q$. The results show how to extract matrix elements and the spectrum from simulations with $m_{q}a\approx 1$, which is relevant for the charm quark.

Comments: 4 pages LaTeX using espcrc2.sty and epsf.sty. FERMILAB-CONF-92/329-T