  Hadron masses are calculated in quenched lattice QCD on a variety of lattices
in order to probe the scaling behavior of the Fat-Link Irrelevant Clover (FLIC)
fermion action, a fat-link clover fermion action in which the purely irrelevant
operators of the fermion action are constructed using APE-smeared links. The
scaling analysis indicates FLIC fermions provide a new form of nonperturbative
O(a) improvement where near-continuum results are obtained at finite lattice
spacing.
