Lattice Approach to the $\Delta I=1/2$ Rule

G. C. Rossi

Lattice Approach to the $\Delta I=1/2$ Rule

High Energy Physics - Lattice 2007-05-23 v1

Authors: G. C. Rossi

Abstract

We discuss a number of old and new methods for computing $K\to\pi\pi$ amplitudes on the lattice. They all involve a non-perturbative determination of matching coefficients. We show how problems related to operator mixing can be greatly reduced by using point-split hadronic currents.

Keywords

lattice QCD Delta I=1/2 rule K to pi pi amplitudes operator mixing point-split currents

Cite

@article{arxiv.hep-lat/9811009,
  title  = {Lattice Approach to the $\Delta I=1/2$ Rule},
  author = {G. C. Rossi},
  journal= {arXiv preprint arXiv:hep-lat/9811009},
  year   = {2007}
}

Comments

7 pages, plain Latex. Talk given at "Cortona 1998", Cortona - Italy

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