A New Estimate of Ε ′ / Ε ♮
نویسنده
چکیده
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 ∆S = 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 ∆I = 1/2 selection rule in K → ππ decays, which is well reproduced within the same framework. Talk given at the Workshop on K Physics, Orsay, France, May 30 June 4, 1996.
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