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New Physics contribution to $B to K pi$ decays in SCET

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 نشر من قبل Katri Huitu
 تاريخ النشر 2009
  مجال البحث
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We analyze the $5sigma$ difference between the CP asymmetries of the $B^0 to K^+ pi^-$ and $B^+ to K^+ pi^0$ decays within the Soft Collinear Effective Theory. We find that in the Standard Model, such a big difference cannot be achieved. We classify then the requirements for the possible New Physics models, which can be responsible for the experimental results. As an example of a New Physics model we study minimal supersymmetric models, and find that the measured asymmetry can be obtained with non-minimal flavor violation.



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