Starting from the general effective hamiltonian relevant to the b→ s transitions, we derive the expressions for the full angular distributions of the B → K(*) ₁ ₂ decay modes, as well as for B(Bₛ → ₁ ₂ ) ( ₁≠ ₂ ). We point out the differences in the treatment of the lepton flavor violating modes with respect to the lepton flavor conserving ones. The relevant Wilson coefficients we evaluate in two different scenarios: (i) The (pseudo-)scalar coefficients are obtained using the (pseudo-)scalar coupling extracted from the experimental non-zero value of B(h→ μ τ ) , (ii) we revisit a Z^ model in which the flavor changing neutral couplings are allowed. We provide the numerical estimates of the branching fractions of the above-mentioned modes in both scenarios.
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Bečirević et al. (2016) studied this question.
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