B→sνν̄ decay in the MSSM: Implication of b→sγ at large tanβ

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Abstract

The decay b→sνν̄ is discussed in the minimal supersymmetric standard model with general flavor mixing for squarks, at large tanβ. In this case, in addition to the chargino loop contributions which were analyzed in previous studies, tanβ-enhanced contributions from the gluino and charged Higgs boson loops might become sizable compared with the standard model contribution, at least in principle. However, it is demonstrated that the experimental bounds on the new physics contributions to the radiative decay b→sγ should strongly constrain these contributions to b→sνν̄, especially on the gluino contribution. We also briefly comment on a possible constraint from the Bs→μ+μ- decay.

Original languageEnglish
Article number014025
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume77
Issue number1
DOIs
Publication statusPublished - 2008 Jan 24

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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