K → ππ decays with domain wall fermions: lattice matrix elements
نویسندگان
چکیده
منابع مشابه
Decays with Domain Wall Fermions: Lattice Matrix Elements
We present a lattice calculation of the K → π and K → 0 matrix elements of the ∆S = 1 effective weak Hamiltonian which can be used to determine ǫ′/ǫ and the ∆I = 1/2 rule for K decays in the Standard Model. The matrix elements for K → ππ decays are related to K → π and K → 0 using lowest order chiral perturbation theory. We also present results for the kaon B parameter, BK . Our quenched domain...
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We are using domain wall fermions to study K → ππ matrix elements by measuring K → π and K → 0 matrix elements on the lattice and employing chiral perturbation theory to relate these to the desired physical result. The residual chiral symmetry breaking of domain wall fermions with a finite extent in the fifth dimension impacts these measurements. Using the Ward-Takahashi identities, we investig...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2001
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(01)00937-9