New physics in b→s transitions in the MF331 model.

There are two sources that help to explain the R K , R K ∗ anomalies in the MF331 model. The first is non-LFUV couplings of the new neutral gauge boson Z ′ with leptons, g Z ′ (e) ≠ g Z ′ (μ , τ) , which causes the R K , R K ∗ anomalies via Z ′ -penguin diagrams involving newly charged gauge bosons X μ ± , and exotic U-quarks. The second is the contribution from the box diagram only for the first generation of leptons. We show that the penguin diagrams can not explain R K , R K ∗ anomalies, and that the box diagram is required. The experimental constraints for R K and R K ∗ result in new particle mass degeneracy. The contributions of NP to the branching ratios Br (B s → μ + μ -) , Br (b → s γ) predict results that agree with the experimental limits in the allowed region of the NP scale. [ABSTRACT FROM AUTHOR]