Matrix elements of DI=3/2 K-->pi pi decays

Abstract

We present a numerical computation of matrix elements of DI=3/2 K-->pi pi decays by using Wilson fermions. In order to extrapolate to the physical point we work at unphysical kinematics and we resort to Chiral Perturbation Theory at the next-to-leading order. In particular we explain the case of the electroweak penguins O_{7,8} which can contribute significantly in the theoretical prediction of epsilon'/epsilon. The study is done at beta=6.0 on a 24^3x64 lattice.

3 pages, 6 figures, Lattice2003(Matrix)

References in corpus (3)

• A precision measurement of direct CP violation in the decay of neutral kaons into two pions
• Remark on the Theoretical Uncertainty in B^0-\bar{B}^0 Mixing
• K^+ -> pi^+ pi^0 Decays on Finite Volumes and at Next-to-Leading Order in the Chiral Expansion

Cited by in corpus (1)

• Renormalization Constants of Quark Operators for the Non-Perturbatively Improved Wilson Action