Rare $Λ_{b}\to Λ\ell^{+}\ell^{-}$ decay in the two-Higgs doublet model of type-III
The rare exclusive dileptonic $Λ_{b}\to Λ\ell^{+}\ell^{-}$ $(\ell =μ, τ)$ decays are investigated in the general two-Higgs-doublet model of type III. A significant enhancement to the branching ratios, differential branching ratios, leptons forward-backward asymmetry, and the $Λ$ baryon polarizations over the standard model is obtained. Measurements of these quantities will be useful for establishing the two-Higgs doublet model.
hep-ph↗