Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1996-08-05
Nucl.Phys.Proc.Suppl.53:877-879,1997
Physics
High Energy Physics
High Energy Physics - Lattice
3 pages latex with 2 postscript figures. Talk presented at LATTICE96(spectrum)
Scientific paper
10.1016/S0920-5632(96)00807-9
We present results of quenched $SU(3)$ hadron spectroscopy comparing $\order(a)$ improved Wilson (Clover) fermions with conventional Wilson fermions. The configurations were generated using an $\order(a^2)$ improved 6-link $SU(3)$ pure gauge action at $\beta$'s corresponding to lattice spacings of $0.15$, $0.18$, $0.20$, $0.33$, and $0.43$ fm. We find evidence that fermionic scaling violations are consistent with $\order(a^2)$ for Clover and $\order(a)$ with a nonnegligible $\order(a^2)$ 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 scaling violations is roughly $250 MeV$ for both Wilson and Clover fermions.
Collins Sara
Edwards Robert G.
Heller Urs M.
Sloan J. J.
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