Abstract
We present results of quenched SU(3) hadron spectroscopy comparing O ( a) improved Wilson (Clover) fermions with conventional Wilson fermions. The configurations were generated using an O ( a 2) improved 6-link SU(3) pure gauge action at β's corresponding to lattice spacings of 0.16, 0.18, 0.21, 0.26, 0.34, and 0.42 fm. We find evidence that fermionic scaling violations are consistent with O ( a 2) for Clover and O ( a) with a nonnegligible O ( a 2) term for standard Wilson fermions. This latter mixed ansatz makes a reliable continuum extrapolation problematic for Wilson fermions. We also find that the slope of the scalingviolations is roughly 250 MeV fof both Wilson and Clover fermions
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