2020/08/17 by N. Soni, Nakul R. Soni, Аidos Issadykov +10
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.2008.07202
40 pages, 9 figures
openalex publication_date 2020/08/17 · arxiv created 2021/10/11 · arxiv updated 2021/10/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this article, we study the rare decays corresponding to b → d transition in the framework of the covariant confined quark model. The transition form factors for the channels B+(0) → (π+(0), ρ+(0),ω) and Bs0 → K(*)0 are computed in the entire dynamical range of momentum transfer squared. Using the form factors, we compute the branching fractions of the rare decays and our results are found to be matching well with the experimental data. We also compute the ratios of the branching fractions of the b → s to b → d rare decays using the inputs from previous papers on b → s ℓ+ℓ- using this model. Further, using the form factors, model dependent and independent parameters, we also compute different other physical observables such as forward backward asymmetry, longitudinal polarization and angular observables in the entire q2 range as well as in q2 bins [0.1 -- 0.98] GeV2 and [1.1 -- 6] GeV2. We also compare our findings with different theoretical predictions.