BK from quenched overlap QCD
نویسندگان
چکیده
منابع مشابه
B K from Quenched Overlap Qcd *
We present an exploratory calculation of the standard model ∆S = 2 matrix element relevant for indirect CP violation in K → ππ decays. The computation is performed with overlap fermions in the quenched approximation at β = 6.0 on a 16 3 × 32 lattice. The resulting bare matrix element is renormalized non-perturbatively. Our preliminary result is B NDR K (2 GeV) = 0.61(7), where the error does no...
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Overlap fermions have the following desirable features: • Exact chiral symmetry on the lattice. • No additive quark mass renormalization. • No flavor symmetry breaking. • No O(a) error. • The O(ma) and O(ΛQCDma) errors are also small, from dispersion relation and renormalization constants. The first two features are especially significant for light quarks. Many exciting results at low quark mas...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2003
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(03)01550-0