2024/03/22 by Wan, Meng-Yuan, Xu, Yuan-Guo, Jia, Qi-Lin +2
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)
paper · doi:10.48550/arxiv.2403.14929
We present a complete study of the B→ D^*Pℓ+ν_ℓ~(ℓ=e,μ,τ) decays with the non-resonant, the charmed axial vector resonant and the charmed tensor resonant contributions by using the SU(3) flavor symmetry. Relevant amplitude relations between different decay modes are obtained by the SU(3) flavor symmetry. We then predict non-measured branching ratios of the B→ D^*Pℓ+ν_ℓ decays with the non-resonant and the charmed resonant contributions by using present experimental data of the B→ D^*Pℓ'+νℓ'~(ℓ'=e,μ) decays within 2σ errors. We have found that B0,+→ D^*ηℓ+ν_ℓ, B0,+→ D^*η'ℓ+ν_ℓ, B0s→ D^*s ηℓ+ν_ℓ, B0s→ D^*sη'ℓ+ν_ℓ and B0,+→ D*sKℓ+ν_ℓ decays only receive non-resonant contributions. Decays B0s→ Ds*-π0ℓ+ν_ℓ only receive the D's1 resonant contributions. Other decays receive all three kinds of contributions, and three kinds of contributions are important in most of decays.