Year: 2025
Type: article
Abstract: Decays B ⟶DP ℓ + ν ℓ ( ℓ = e , μ , τ ) with the nonresonance, the charmed vector resonances, the charmed scalar resonances, and the charmed tensor resonances are explored by using the SU(3) flavor symmetry approach. Firstly, the decay amplitudes of different modes are related by the SU(3) flavor symmetry. Then, relevant experimental data are used to constrain nonperturbative coefficients in the nonresonant and various resonant B ⟶ D P ℓ + ν ℓ decays. Finally, using the constrained nonperturbative coefficients, the branching ratios of not‐yet‐measured B ⟶DP ℓ + ν ℓ decays with the nonresonant and various charmed resonant contributions are predicted. Many branching ratios are predicted for the first time. We find that B ⟶ D η ′ ℓ + ν ℓ , B s ⟶ D s η ′ ℓ + ν ℓ decays only receive the nonresonant contributions; B ⟶ D s K ℓ + ν ℓ , B s ⟶DK ℓ + ν ℓ , B ⟶ D η ℓ + ν ℓ , and B s ⟶ D s η ℓ + ν ℓ decays receive both the nonresonant and the tensor resonant contributions; B + ⟶ D − π + ℓ + ν ℓ decays receive the nonresonant, the scalar resonant, and the tensor resonant contributions; and other B ⟶ D π ℓ + ν ℓ decays receive all kinds of contributions. These results can be used to test the SU(3) flavor symmetry approach in the four‐body semileptonic B decays in future experiments at LHCb and Belle‐II.
Source: Advances in High Energy Physics
DOI: 10.1155/ahep/1877856
Institutions: Jiangxi Normal University, Xinyang Normal University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,550
OpenAlex ID: W4412370155