6533b857fe1ef96bd12b4c68

RESEARCH PRODUCT

K-0-(K)over-bar(0) mixing with Wilson fermions without subtractions

Vicente Giménez GómezD. BecirevicPh. BoucaudV. LubiczGuido MartinelliJ. MicheliMauro Papinutto

subject

High Energy Physics::LatticeHigh Energy Physics::PhenomenologyPartícules (Física nuclear)

description

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.

10.1016/s0370-2693(00)00797-8http://dx.doi.org/10.1016/S0370-2693(00)00797-8