We discuss the status and the problems related to the application of the off-shell non-perturbative renormalization method in a fixed gauge to operators relevant to weak decays. In particular, we critically reappraise the method recently proposed for the ΔI = 1/2 rule. We also present a general analysis of the renormalization for the ΔI = 3/2 operators, and apply it to the ΔS = 2 operator.
Nuclear Physics B Proceedings Supplements
- Pub Date:
- January 1998
- High Energy Physics - Lattice
- Invited talk at the International Workshop ``Lattice QCD on Parallel Computers'', 10-15 March 1997, Tsukuba (Japan). LaTeX 12 pages, uses espcrc2, 6 figures