Abstract
Using the relativistic Bethe–Salpeter method, the electron energy spectrum and the semileptonic decay widths of Bs0 → Ds−ℓ+νℓ and Bs0 → Ds*−ℓ+νℓ are calculated. We obtain a large branching fraction Br(Bs → Dseνe) = (2.85 ± 0.35)% and Br(Bs → Ds*eνe) = (7.09 ± 0.88)%, which can be easily detected in future experiments.
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