Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1992-11-13
Nucl.Phys.Proc.Suppl. 30 (1993) 385-388
Physics
High Energy Physics
High Energy Physics - Lattice
at Lattice '92, 4 pages, Edinburgh Preprint: 92/519
Scientific paper
We have studied the light hadron spectrum and decay constants for quenched QCD at beta=6.2 on a 24^3x48 lattice. We compare the results obtained using a nearest-neighbour O(a)-improved ("clover") fermion action with those obtained using the standard Wilson fermion action on the same gauge configurations. For pseudoscalar meson masses in the range 330-800 MeV, we find no significant difference between the results for the two actions. The scales obtained from the string tension and mesonic sector are consistent, but higher than those derived from baryon masses. The ratio of the pseudoscalar decay constant to the vector meson mass is roughly independent of quark mass as observed experimentally.
Simpson presented by Alan D.
UKQCD Collaboration
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