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 mqa systematically (mq is the fermion mass) showing how to understand the Wilson action as an effective action for systems with p mq. The results show how to extract matrix elements and the spectrum from simulations with mqa≈1, which is relevant for the charm quark.
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