Strong Isospin Breaking in CP-even and CP-odd K -> pi pi Decays

(2) Dept. of Math; Bloomington; Canada); C. E. Wolfe (1); Indiana Univ.; K. Maltman (2) ((1) Nuclear Theory Center; Stats; Toronto; USA; York Univ.

arxiv: hep-ph/0007061 · v1 · submitted 2000-07-06 · ✦ hep-ph

Strong Isospin Breaking in CP-even and CP-odd K -> pi pi Decays

C. E. Wolfe (1) , K. Maltman (2) ((1) Nuclear Theory Center , Indiana Univ. , Bloomington , USA , (2) Dept. of Math , Stats , York Univ.

show 2 more authors

Toronto Canada)

This is my paper

classification ✦ hep-ph

keywords strongcontributionscp-evencp-oddepsilonbreakingchiralcomplete

0 comments

read the original abstract

Complete next-to-leading (chiral) order (NLO) expressions for the strong isospin-breaking (IB) contributions in K -> pi pi are used to discuss (1) for CP-even, the impact on the magnitude of the Delta I=1/2 Rule, and (2) for CP-odd, the strong IB correction, Omega_st, for the gluonic penguin contribution to epsilon'/epsilon, with particular emphasis on the strong low-energy constant (LEC) and loop contributions, numerical values for which are model-independent at NLO.

This paper has not been read by Pith yet.

Strong Isospin Breaking in CP-even and CP-odd K -> pi pi Decays

discussion (0)