We present an exploratory calculation of the standard model Delta S=2 matrix element relevant for indirect CP violation in K -> pi pi decays. The computation is performed with overlap fermions in the quenched approximation at beta=6.0 on a 16^3x32 lattice. The resulting bare matrix element is renormalized non-perturbatively. Our preliminary result is B_K^{NDR}(2 GeV)=0.61(7), where the error does not yet include an estimate of systematic uncertainties

Garron, N., Giusti, L., Hoelbling, C., Lellouch, L., & Rebbi, C. (2003). B(K) from quenched overlap QCD. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 119, 356-358 [10.1016/S0920-5632(03)01550-0].

B(K) from quenched overlap QCD

GIUSTI, LEONARDO;
2003

Abstract

We present an exploratory calculation of the standard model Delta S=2 matrix element relevant for indirect CP violation in K -> pi pi decays. The computation is performed with overlap fermions in the quenched approximation at beta=6.0 on a 16^3x32 lattice. The resulting bare matrix element is renormalized non-perturbatively. Our preliminary result is B_K^{NDR}(2 GeV)=0.61(7), where the error does not yet include an estimate of systematic uncertainties
Si
Articolo in rivista - Articolo scientifico
Scientifica
kaon decays, gauge theory, lattice
English
356
358
3
Garron, N., Giusti, L., Hoelbling, C., Lellouch, L., & Rebbi, C. (2003). B(K) from quenched overlap QCD. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 119, 356-358 [10.1016/S0920-5632(03)01550-0].
Garron, N; Giusti, L; Hoelbling, C; Lellouch, L; Rebbi, C
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/24720
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