KaonBparameter with the Wilson quark action using chiral Ward identities
نویسندگان
چکیده
منابع مشابه
BK with the Wilson Quark Action: A Non-Perturbative Resolution of Operator Mixing using Chiral Ward Identities
An essential step in the calculation of BK with the Wilson quark action is the resolution of the mixing problem of the ∆s = 2 four-quark operators, which is made difficult by the chiral symmetry breaking effects of the Wilson term. An apparent deficiency of perturbation theory for this problem has been well known[1], and most calculations have tried to resolve the mixing non-perturbatively with...
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A lattice QCD calculation of the kaon B parameter BK is carried out with the Wilson quark action in the quenched approximation at β = 6/g2 = 5.9− 6.5. The mixing problem of the ∆s = 2 four-quark operators is solved nonperturbatively with full use of chiral Ward identities employing four external quarks with an equal off-shell momentum in the Landau gauge. This method, without invoking any effec...
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A lattice QCD calculation of the kaon B parameter BK is carried out with the Wilson quark action in the quenched approximation at β = 6/g2 = 5.9− 6.5. The mixing problem of the ∆s = 2 four-quark operators is solved nonperturbatively with full use of chiral Ward identities employing four external quarks with an equal off-shell momentum in the Landau gauge. This method, without invoking any effec...
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Systems of interacting non relativistic fermions in d = 1, as well as spin chains or interacting bidimensional Ising models, verify an hidden approximate Gauge invariance which can be used to derive suitable Ward identities. Despite the presence of corrections and anomalies, such Ward identities can be implemented in a Renormalization Group approach and used to exploit non-trivial cancellations...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1999
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.60.034511