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

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

2003-09-18

arxiv.org/abs/hep-lat/0309128v1

Nucl.Phys.Proc.Suppl.129:314-316,2004

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 6 figures, Lattice2003(Matrix)

Scientific paper

10.1016/S0920-5632(03)02567-2

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.

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