2018/03/19 by Yi Zhang, Zhi-Hui Wang, Tian-Hong Wang +4
Physics and Astronomy · #Four-wave mixing #Mixing (physics) #Mixing ratio #Nuclear physics research studies #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1088/1674-1137/42/12/123101
arxiv created 2018/03/19 · openalex created_date 2018/03/29 · openalex publication_date 2018/11/01 · arxiv updated 2018/12/05 · openalex updated_date 2026/08/05
Many P -wave mixing heavy-light 1 + states have not yet been discovered by experiment, while others have been discovered but without width information, or with large uncertainties on the widths. In this paper, the strong decays of the P -wave mixing heavy-light 1 + states D 0 , D ± , D s ± , B 0 , B ± and B s are studied by the improved Bethe-Salpeter (B-S) method with two conditions of mixing angle θ : one is θ = 35.3°; the other is considering a correction to the mixing angle θ = 35.3 ∘ + θ 1 . Valuable predictions for the strong decay widths are obtained: Γ ( D 1 ′ 0 ) = 232 MeV , Γ ( D 1 0 ) = 21.5 MeV , Γ ( D 1 ′ ± ) = 232 MeV , Γ ( D 1 ± ) = 21.5 MeV , Γ ( D s 1 ′ ± ) = 0.0101 MeV , Γ ( D s 1 ± ) = 0.950 MeV , Γ ( B 1 ′ ± ) = 263 MeV , Γ ( B 1 ± ) = 16.8 MeV , Γ ( B s 1 ′ ) = 0.01987 MeV and Γ ( B s 1 ) = 0.412 MeV . It is found that the decay widths of D s 1 ± and B s 1 are very sensitive to the mixing angle. The results will provide theoretical assistance to future experiments.