Strange Quark Physics on the Lattice

Details Strange Quark Physics on the Lattice Strange Quark Physics on the Lattice

1993-12-03

arxiv.org/abs/hep-lat/9312017v1

Nucl.Phys.Proc.Suppl. 34 (1994) 411-413

Physics

High Energy Physics

High Energy Physics - Lattice

UKQCD Collaboration, 3 pages, uuencoded-compressed-tar Postscript, to appear in Proceedings of Lattice '93, Dallas, October 19

Scientific paper

We present results for hadrons containing a strange quark in quenched lattice QCD. We calculate masses and decay constants using 60 gauge configurations with an O(a)-improved fermion action at beta = 6.2. Using the rho mass to set the scale, we find hadron masses within two to three standard deviations of experiment. Direct comparison with experiment for decay constants is obscured by uncertainty in current renormalisations. Finally, we present preliminary results on the semi-leptonic decay D->K. We find f_K^+(0)/Z_V = 0.75+5-4 and f_K^0(0)/Z_V = 0.74+4-4.

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