Study of $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ Decays in the Family Non-universal $Z^{\prime }$ Models

Abstract

In a combined investigation of the $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ decays, constraints on the related couplings in family non-universal $Z^{\prime }$ models are derived. We find that within the allowed parameter space, the recently observed forward-backward asymmetry in the $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decay can be explained, by flipping the signs of the Wilson coefficients $C_9^{\mathrm{eff}}$ and $C_{10}$. With the obtained constraints, we also calculate the branching ratio of the $B_s\to {\mu }^{+}{\mu }^{-}$ decay. The upper bound of our prediction is near the upper bound given by CDF Collaboration recently.

19 pages, 4 figures, some errors corrected; Journal version

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Cited by in corpus (17)

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• Annihilation-Type Charmless Radiative Decays of B Meson in Non-universal Z^\prime Model
• Testing the Non-universal Z^\prime Model in Bs -> ϕπ^0 Decay
• $B_s^0-{\bar{B}}_s^0$ mixing in a family non-universal $Z^{\prime }$ model revisited
• The effects of a family non-universal Z-prime boson on B--->pipi decays
• Study of semileptonic decays $B\to \pi l^{+}{l}^{-}$ and $B\to \rho l^{+}{l}^{-}$ in non-universal Z' model
• Implication of family non-universal $Z^{\prime }$ model to rare exclusive $b\to s(l\bar{l},\nu \bar{\nu })$ transitions
• Phenomenological Implications of Supersymmetric Family Non-universal U(1)-prime Models
• Analysis of the $\bar{B}\to {\bar{K}}_2(1430){\ell }^{+}{\ell }^{-}$ decay
• Investigation of rare semileptonic $B_c$ decays into $(D_{(}s,d{)}^{(}(\ast ))){\mu }^{+}{\mu }^{-}$ decays with non-universal $Z^{\prime }$ effect
• Effects of neutral $Z^{\prime }$ boson in $B_s\to \varphi {\ell }^{+}{\ell }^{-}$ decay with polarized $\varphi$ and the unpolarized and polarized $CP$ violation asymmetry
• Analysis of Angular Observables of ${\Lambda }_b\to \Lambda (\to p\pi ){\mu }^{+}{\mu }^{-}$ Decay in Standard and $Z^{\prime }$ Models
• Implication of Z-mediated FCNC on semileptonic decays $B_s\to \varphi l^{+}{l}^{-}$ and $B^{+}\to K^{+}{l}^{+}{l}^{-}$
• Implication of the Fourth Generation Standard Model to the Lepton Polarization asymmetries in the $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ Decay
• Forward-backward asymmetry of $B\to K_J{l}^{+}{l}^{-}$ decays in SM and new physics models