A New Estimate of ε '/ε
Bertolini, S.
الأصل · EN
We discuss a new estimate of ε '/ε in the kaon system. The present approach is based on the evaluation of the hadronic matrix elements of the ΔS =1 effective quark lagrangian by means of the chiral quark model, with the inclusion of meson one-loop renormalization and NLO Wilson coefficients. The estimate here reviewed is fully consistent with the ΔI =1/2 selection rule in K→ ππ decays, which is well reproduced within the same framework.
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