ar X iv : h ep - l at / 9 70 50 35 v 1 2 6 M ay 1 99 7 Lattice QCD Calculation of the Kaon B - parameter with the Wilson Quark Action
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چکیده
The kaon B parameter is calculated in quenched lattice QCD with the Wilson quark action. The mixing problem of the ∆s = 2 four-quark operators is solved non-perturbatively with full use of chiral Ward identities, and this method enables us to construct the weak four-quark operators exhibiting good chiral behavior. We find BK(NDR, 2GeV) = 0.562(64) in the continuum limit, which agrees with the value obtained with the Kogut-Susskind
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تاریخ انتشار 1997