Search for new physics via CP violation in $B_{d,s} \to l^+ l^-

Abstract

It is shown that in the approximation of $|\frac{q}{p}|$=1 the CP violation in $B_{d,s}^0\to l^{+}{l}^{-}$ decays vanishes in SM. In a 2HDM with CP violating phases and MSSM the CP asymmetries depend on the parameters of models and can be as large as 40% for $B_d^0$ and 3% for $B_s^0$. An observation of CP asymmetry in the decays would unambiguously signal the existence of new physics.

shortened version, latex, 10 pages, 2 figures, comments added

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• B, D and K decays
• Probing New Physics with the B_s to μ+ μ- Time-Dependent Rate
• CP Violation Effects on $B_{s,d}^0\to l^{+}{l}^{-}$ in Supersymmetry at Large $\tan \beta$
• B_s -> mu^+ mu^- and B -> X_s mu^+ mu^- in MSSM
• $(g-2{)}_{\mu }$ and CP Asymmetries in $B_{d,s}^0\to l^{+}{l}^{-}$ and $b\to s\gamma$ in SUSY models
• CP violation in $B_{d,s}\to l^{+}{l}^{-}$ in the model III 2HDM
• On Branching Ratios of $B_s$ Decays and the Search for New Physics in $B_s^0\to {\mu }^{+}{\mu }^{-}$
• CP violation in B0_d --> tau+ tau- decays
• Effect of both Z and Z^prime - mediated flavor-changing neutral currents on $B_s$ decays into $ta{u}^{+}ta{u}^{-}$
• Angular distribution asymmetry in tau^- --> pi^- pi^0 nu_tau decay in the two-Higgs-doublet model with large tan beta
• Search for new physics in $B_{d,s}\to l^{+}{l}^{-}$
• Probing quantum decoherence at Belle II and LHCb