Abstract

We investigate the CP violating contribution to the decay mode K L → π 0e +e − in the standard model. We present a recalculation of the effective lagrangian involving only light quarks, working to all orders in m t/ m w and computing the leading order strong interaction corrections. We consider the standard model prediction for the branching ratio as a function of top quark mass and KM parameters, and briefly consider nonstandard model contributions to this decay.

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