====== TTP06-19 K_L -> pi e^+ e^- and K_L -> pi mu^+ mu^- : a binary star on the stage of flavor physics ======
 
 
   <hidden TTP06-19  K_L -> pi e^+ e^- and K_L -> pi mu^+ mu^- : a binary star on the stage of flavor physics > 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**  | 
|**  JHEP  0608 088 2006  **  |
| {{preprints:2006:ttp06-19.pdf|PDF}} {{preprints:2006:ttp06-19.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0606081|arXiv]]   |
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