Productions of Ds0∗ (2317) and Ds1 (2460) in B (s) and Λb (Ξb) decays

Recent studies show that Ds0∗(2317) and Ds1(2460) contain large molecular components. In this work, we employ the naive factorization approach to calculate the production rates of Ds0∗(2317) and Ds1(2460) as hadronic molecules in B(s) and Λb(Ξb) decays, where their decay constants are estimated in the effective Lagrangian approach. With the so-obtained decay constants fDs0∗(2317) and fDs1(2460), we calculate the branching fractions of the b-meson decays B(s)→D¯(s)(∗)Ds0∗ and B(s)→D¯(s)(∗)Ds1 and the b-baryon decays Λb(Ξb)→Λc(Ξc)Ds0∗ and Λb(Ξb)→Λc(Ξc)Ds1. Our results show that the production rates of Ds0∗(2317) and Ds1(2460) in the Bs, Λb, and Ξb decays are large enough that future experiments could observe them. In particular, we demonstrate that one can extract the decay constants of hadronic molecules via the triangle mechanism because of the equivalence of the triangle mechanism to the tree diagram established in calculating the decays B→D¯(∗)Ds0∗(2317) and B→D¯(∗)Ds1(2460).