University of Cambridge > > HEP phenomenology joint Cavendish-DAMTP seminar > Squark Flavor Implications from B --> K^(*) l^+ l^-

Squark Flavor Implications from B --> K^(*) l^+ l^-

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  • UserChristian Gross (Basel)
  • ClockThursday 17 May 2012, 16:00-17:00
  • HouseMR13, CMS.

If you have a question about this talk, please contact Marcin Badziak.

Recent experimental and theoretical progress regarding B—> K(*) l+ l- decays led to improved bounds on the Wilson coefficients C_9 and C_10 of four-fermion operators of the |Delta B|=|Delta S|=1 effective Hamiltonian. We analyze the resulting implications on squark flavor violation in the MSSM and obtain new constraints on flavor-changing left-right mixing in the up-squark-sector. We find the dimensionless flavor mixing parameter (deltau_23)_LR, depending on the flavor-diagonal MSSM masses and couplings, to be as low as \lesssim 0.1. This has implications for models based on radiative flavor violation and leads to BR(Bs—> mu+ mu-) \gtrsim 1×10-9. Rare top decays t—> c gamma, t—> c g, t—> c Z have branching ratios predicted to be below \lesssim few times 10-8, 10-6 and 10-7, respectively.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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