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29 March 2024
 
  » arxiv » hep-lat/9705035

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Lattice QCD Calculation of the Kaon B-parameter with the Wilson Quark Action
JLQCD Collaboration S.Aoki ; M.Fukugita ; S.Hashimoto ; N.Ishizuka ; Y.Iwasaki ; K.Kanaya ; Y.Kuramashi ; M.Okawa ; A.Ukawa ; T.Yoshié ;
Date 26 May 1997
Journal Phys.Rev.Lett. 81 (1998) 1778-1781
Subject hep-lat
AbstractThe kaon B parameter is calculated in quenched lattice QCD with the Wilson quark action. The mixing problem of the Delta 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 B_K(NDR, 2GeV)=0.562(64) in the continuum limit, which agrees with the value obtained with the Kogut-Susskind quark action.
Source arXiv, hep-lat/9705035
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