Delta I=1/2 rule from staggered fermions
arXiv:hep-lat/9809115 · doi:10.1016/S0920-5632(99)85057-9
Abstract
We present our latest results for the Delta I=1/2 rule, obtained on quenched ensembles with beta=6.0 and 6.2, and a set of N_f=2 configurations with beta=5.7. The statistical noise is quite under control. We observe an enhancement of the Delta I=1/2 amplitude consistent with experiment, although the systematic errors are still large. We also present a non-perturbative determination of Z_P, Z_S and the strange quark mass. We briefly discuss our progress in calculating epsilon-prime.
LATTICE98(matrixelement)