K-0-(K)over-bar(0) mixing with Wilson fermions without subtractions
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By using suitable Ward identities, we show that it is possible to compute K-0-(K) over bar(0) 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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Giménez Gómez, Vicente 2000 K-0-(K)over-bar(0) mixing with Wilson fermions without subtractions Physics Letters B 487 1-2 74 80
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