standard model (SM) prediction of the like sign dimuon asymmetry in semileptonic $b$ decay [@Abazov:2010hv]. This observation joins past anomalous measurements of $B_s \rightarrow J/\psi \, \phi$ and $B^- \rightarrow \tau \, \nu$ decays that can be interpreted as a pattern of deviations consistent with new physics contributing a new phase in $B_{s,d}$ mixing (for a recent global fit and discussion see [@Lenz:2010gu]).[^1]

If the explanation of the like sign dimuon asymmetry measurement and these correlated deviations are not statistical fluctuations, then new physics interpretations of this pattern are of interest. General operator analyses have been carried out [@Ligeti:2010ia; @Blum:2010mj; @Batell:2010qw] and indicate that operators induced by scalar exchange with unenhanced Yukawa couplings and order one parameters in the potential (i.e. order one Wilson coefficients) the mass scale suppressing the operators of interest is a few hundred $\rm GeV$.

Such a low mass scale is challenging to reconcile with known constraints from flavour physics unless minimal flavour violation (MFV) [@Chivukula:1987py; @Hall:1990ac; @D'Ambrosio:2002ex] is imposed. New physics (NP) models with MFV have the quark flavor group $SU(3)_{U_R} \times SU(3)_{D_R} \times SU(3)_{Q_L}$ only broken by the Yukawa couplings. However this scenario does allow new phases and so provides a framework for explaining 