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Testing the standard model and searching for new physics with B d → ππ and B s → KK decays

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Abstract

We propose to perform a combined analysis of B → ππ and B s → K + K − modes, in the framework of a global CKM fit. The method optimizes the constraining power of these decays and allows to derive constraints on NP contributions to penguin amplitudes or on the B s mixing phase. We illustrate these capabilities with a simplified analysis using the recent measurements by the LHCb Collaboration, neglecting correlations with other SM observables.

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Authors and Affiliations

  1. INFN, Sezione di Roma Tre, Via della Vasca Navale 84, I-00146, Roma, Italy

    M. Ciuchini

  2. INFN, Sezione di Roma, Piazzale A. Moro 2, I-00185, Roma, Italy

    E. Franco, S. Mishima & L. Silvestrini

Authors
  1. M. Ciuchini
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  2. E. Franco
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  3. S. Mishima
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  4. L. Silvestrini
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Correspondence to L. Silvestrini.

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Ciuchini, M., Franco, E., Mishima, S. et al. Testing the standard model and searching for new physics with B d → ππ and B s → KK decays. J. High Energ. Phys. 2012, 29 (2012). https://doi.org/10.1007/JHEP10(2012)029

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  • DOI: https://doi.org/10.1007/JHEP10(2012)029

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