Talk presented by Amarjit Soni

Parallel Session: Matrix Elements I

Tuesday June 29th, 17.00 - 17.20, Auditorium

Authors: jointly in the Riken-Brookhaven-Columbia-Collaboration

K to pi pi and K-K-bar Matrix Elements with Domain Wall Quarks.

Abstract: Organizers please note that this is 2nd in a series of 3 talks on weak matrix elements with domain wall quarks (DWQ) 1st is by Chris Dawson on non-perturbative renormalization; 2nd is mine, 3rd is on epsilon'/epsilon by Tom Blum...Thanks) Since DWQ exhibit good chiral behavior we continue our efforts to apply them for hadronic matrix elements wherein chiral symmetry is crucial. In particular, we examine the long standing issue of K to 2 pi decays and the emergence of the Delta I=1/2 Rule. We also continue to improve our calculation of B_K with DWQ. Throughout, we make use of the non-perturbative renormlization procedure (see the contribution by C. Dawson) proposed by the Rome group. Results from simulations at beta=5.85 and 6.0 will be presented.

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