Correlation functions at small quark masses with overlap fermions

Abstract

We report on recent work on the determination of low-energy constants describing Delta{S}=1 weak transitions, in order to investigate the origins of the Delta{I}=1/2 rule. We focus on numerical techniques designed to enhance the statistical signal in three-point correlation functions computed with overlap fermions near the chiral limit.

Comments: Talk presented at Lattice2004(weak), Fermilab, 21-26 June 2004, 3 pages, 2 figures