Analysis of $B_s\to \varphi {\mu }^{+}{\mu }^{-}$ decay within supersymmetry

Abstract

Motivated by the first measurement on $\mathcal{B}(B_s\to \varphi {\mu }^{+}{\mu }^{-})$ by the CDF Collaboration, we study the supersymmetric effects in semi-leptonic $B_s\to \varphi {\mu }^{+}{\mu }^{-}$ decay. In our evaluations, we analyze the dependences of the dimuon invariant mass spectrum and the forward-backward asymmetry on relevant supersymmetric couplings in the MSSM with and without R-parity. The analyses show the new experimental upper limits of $\mathcal{B}(B_s\to {\mu }^{+}{\mu }^{-})$ from the LHCb Collaboration could further improve the bounds on sneutrino exchange couplings and $({\delta }_{LL}^u{)}_{23}$ as well as $({\delta }_{LL,RR}^d{)}_{23}$ mass insertion couplings. In addition, within the allowed ranges of relevant couplings under the constraints from $\mathcal{B}(B_s\to \varphi {\mu }^{+}{\mu }^{-})$, $\mathcal{B}(B\to K^{(\ast )}{\mu }^{+}{\mu }^{-})$ and $\mathcal{B}(B_s\to {\mu }^{+}{\mu }^{-})$, the dimuon forward-backward asymmetry and the differential dimuon forward-backward asymmetry of $B_s\to \varphi {\mu }^{+}{\mu }^{-}$ are highly sensitive to the squark exchange contribution and the $({\delta }_{LL}^u{)}_{23}$ mass insertion contribution. The results obtained in this work will be very useful in searching supersymmetric signal at the LHC.

12 pages, 4 figures

References in corpus (11)

• Strong constraints on the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
• Observation of the Baryonic Flavor-Changing Neutral Current Decay Lambda_b -> Lambda mu+ mu-
• Search for B_s to mu^+ mu^- and B^0 to mu^+ mu^- decays
• Search for B_s --> mu+mu- and B_d --> mu+mu- Decays with CDF II
• Probe R-parity Violating Supersymmetry Effects in $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ and $B_s\to {\ell }^{+}{\ell }^{-}$ Decays
• Constraints from the decay B_s -> mu mu and LHC limits on Supersymmetry
• Study of Bs-> ϕl^+ l^-$ Decay in a Single Universal Extra Dimension
• Analysis of B_s->ϕ\ell^+ \ell^- decay with new physics effects
• Revisiting B_s\toμ^+μ^- and B\to K^{(*)}μ^+μ^- decays in the MSSM with and without R-parity
• B_s --> mu+mu- in Supersymmetric Grand Unified Theories
• Double-Lepton Polarization Asymmetries in $B_s \rar ϕ\ell^+ \ell^-$ Decay in the Fourth-Generation Standard Model

Cited by in corpus (1)

• Implication of Z-mediated FCNC on semileptonic decays $B_s\to \varphi l^{+}{l}^{-}$ and $B^{+}\to K^{+}{l}^{+}{l}^{-}$