B Meson Mixing in Effective Theories of pdf

B Meson Mixing in Effective Theories of

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psi phi and Bs –> psi f_0 from LHCb, in Bs –> psi phi from CDF and D0 and in B –> psi K_S from the B factories as well as the measurement of an anomalous like-sign dimuon charge asymmetry at D0. Taking into account the stringent bounds on the branching ratio of the rare Bs –> mu+mu- decay, we investigate to which extent the framework allows to address the observed (2-3)sigma discrepancies in fits of the unitarity triangle. We find that a non-standard Bd mixing phase, that is in agreement with the current bounds on CP violation in Bs mixing, requires the presence of higher dimensional operators both in the Kahler potential and the superpotential.

The corresponding region of parameter space is characterized by small tan(beta)~5, a light Higgs spectrum with masses below ~400 GeV and will be probed by future measurements at LHCb

• Creator/s: Wolfgang Altmannshofer, Marcela Carena
• Date: 3/12/2012

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