In this paper, we perform a complete one-loop computation of the short-distance Wilson data. We find that the Manohar-Wise model could explain the current data, especially when the couplings of the charged colour-octet scalars to quarks are complex, with the resulting χ 2 min being significantly smaller than that of the SM. Finally, we investigate correlations among the two isospin asymmetries ∆(K * γ) and ∆(ργ), as well as the averaged time-integrated branching ratios B(B s,d → µ + µ − ); some of them are found to be quite strong and could provide, therefore, further insights into the model, once more precise experimental measurements and theoretical predictions for these observables are available in the future.
There are four types of two-Higgs doublet models under a discrete Z 2 symmetry imposed to avoid tree-level flavor-changing neutral current, i.e. type-I, type-II, type-X, and type-Y models. We investigate the possibility to discriminate the four models in the light of the flavor physics data, including B s -B s mixing, B s,d → μ + μ − , B → τ ν and B → X s γ decays, the recent LHC Higgs data, the direct search for charged Higgs at LEP, and the constraints from perturbative unitarity and vacuum stability. After deriving the combined constraints on the Yukawa interaction parameters, we have shown that the correlation between the mass eigenstate rate asymmetry A of B s → μ + μ − and the ratio R = B(B s → μ + μ − ) exp /B(B s → μ + μ − ) SM could be a sensitive probe to discriminate the four models with future precise measurements of the observables in the B s → μ + μ − decay at LHCb.
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