Exclusive rareB_s→ (K, η, η′)ℓ⁺ℓ⁻decays in the light-front quark model

Abstract

Abstract. Using the light-front quark model, we calculate the transition form factors, decay rates, and longitudinal lepton polarization asymmetries for the exclusive rare B s → (K, η (′) )(ℓ + ℓ − , ν ℓνℓ (ℓ = e, µ, τ ) decays within the standard model, taking into account the η − η ′ mixing angle. For the mixing angle θ = −20•

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