We analyze the semileptonic B → T ⁺ ⁻ B → T ℓ + ℓ - , B → T(→ PP) ⁺ ⁻ B → T ( → P P ) ℓ + ℓ - , and B → T(→ PV) ⁺ ⁻ B → T ( → P V ) ℓ + ℓ - decays with =e,μ ,τ ℓ = e , μ , τ based on flavor SU(3) analysis in the standard model ( T denotes the light tensor meson, P denotes the light pseudoscalar meson, and V denotes the light vector meson). The hadronic amplitudes of the B → T ⁺ ⁻ B → T ℓ + ℓ - decays are related by the nonperturbative parameters, and all branching ratios of the B → T ⁺ ⁻ B → T ℓ + ℓ - decays are obtained by the experimental data of the branching ratio of B⁰ₛ→ f₂(1525)μ ⁺μ ⁻ B s 0 → f 2 ′ ( 1525 ) μ + μ - in three cases, and then the branching ratios of the B → T(→ PP) ⁺ ⁻ B → T ( → P P ) ℓ + ℓ - and
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Wang et al. (2026) studied this question.
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