K0-K0bar Mixing with Wilson Fermions without Subtractions

Details K0-K0bar Mixing with Wilson Fermions without Subtractions K0-K0bar Mixing with Wilson Fermions without Subtractions

2000-05-16

arxiv.org/abs/hep-lat/0005013v2

Phys.Lett.B487:74-80,2000

Physics

High Energy Physics

High Energy Physics - Lattice

10 pages, latex, 2 figures, typo in eq.(17) corrected

Scientific paper

10.1016/S0370-2693(00)00797-8

By using suitable Ward identities, we show that it is possible to compute
K0-K0bar mixing without subtracting the terms generated by explicit chiral
symmetry breaking present in Wilson-like lattice actions. The accuracy in the
determination of the amplitudes is of O(a), which is the best one attainable in
the absence of improvement.

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