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arXiv · hep-ph/0606081

KL to pi0 e+ e- and KL to pi0 mu+ mu- : A binary star on the stage of flavor physics

Federico Mescia·Christopher Smith·Stephanie Trine
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Abstract

A systematic analysis of New Physics impacts on the rare decays KL to pi0 l+ l- is performed. Thanks to their different sensitivities to flavor-changing local effective interactions, these two modes could provide valuable information on the nature of the possible New Physics at play. In particular, a combined measurement of both modes could disentangle scalar/pseudoscalar from vector or axial-vector contributions. For the latter, model-independent bounds are derived. Finally, the KL to pi0 mu+ mu- forward-backward CP-asymmetry is considered, and shown to give interesting complementary information.

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Federico Mescia, Christopher Smith, Stephanie Trine. 2006-08-29. KL to pi0 e+ e- and KL to pi0 mu+ mu- : A binary star on the stage of flavor physics. https://doi.org/10.1088/1126-6708%2F2006%2F08%2F088

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