Delta S=2 and Delta I=3/2 Matrix Elements in Quenched QCD

Abstract

We present preliminary results for B_K, B_7^{3/2} and B_8^{3/2} from two high-statistics lattice computations. These calculations are performed at beta=6.0 and 6.2 in the quenched approximation, using mean-field-improved Sheikholeslami-Wohlert fermionic actions.

LATTICE98(matrixelement), minor clarifications

References in corpus (6)

• On the Viability of Lattice Perturbation Theory
• Matrix Elements of 4-fermion Operators with Quenched Wilson Fermions
• Chiral behaviour of the lattice $B_K$-parameter with the Wilson and Clover Actions at $\beta =6.0$
• Lattice B-parameters for $\Delta S=2$ and $\Delta I=3/2$ Operators
• B-parameters of 4-fermion operators from lattice QCD
• The Kaon B-parameter with the Wilson Quark Action using Chiral Ward Identities

Cited by in corpus (11)

• Calculation of Non-Leptonic Kaon Decay Amplitudes from $K\to \pi$ Matrix Elements in Quenched Domain-Wall QCD
• Quenched QCD with O(a) improvement: I. The spectrum of light hadrons
• A Critical Reassessment of Q7 and Q8 Matrix Elements
• The Kaon B-parameter from Quenched Domain-Wall QCD
• Light Hadron Weak Matrix Elements
• Phenomenology from lattice QCD
• An exploratory lattice study of DI=3/2 K -> pi pi decays at next-to-leading order in the chiral expansion
• Kaon B parameter from quenched domain-wall QCD
• Chiral Limit Prediction for epsilon'/epsilon at NLO in 1/N_c
• On-shell Delta I = 3/2 kaon weak matrix elements with non-zero total momentum
• The Influence of Dimension Eight Operators on Weak Matrix Elements