Abstract:We have considered the penguin interaction contribution to K → 2π decays. In particular, we have investigated the effect of the momentum dependence of the penguin coefficient. Our analysis is performed within the Chiral Quark Model where quarks are coupled to the pseudoscalar mesons, which means that hadronic matrix elements can be calculated in terms of quark loop diagrams.We have inserted the momentum dependent penguin coefficient into the relevant quark loop diagrams for K → π. We discuss two possible presc… Show more
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