Rare b→ d decays in covariant confined quark model
Soni N.R. Issadykov A. Gadaria A.N. Patel J.J. Pandya J.N.
March 2022Springer Science and Business Media Deutschland GmbH
European Physical Journal A
2022#58Issue 3
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→ sℓ+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.
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Department of Physics, Faculty of Science, The Maharaja Sayajirao University of Baroda, Gujarat, Vadodara, 390002, India
Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, 141980, Russian Federation
The Institute of Nuclear Physics, Ministry of Energy of the Republic of Kazakhstan, Almaty, 050032, Kazakhstan
Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Applied Physics Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Gujarat, Vadodara, 390001, India
Department of Physics
Bogoliubov Laboratory of Theoretical Physics
The Institute of Nuclear Physics
Al-Farabi Kazakh National University
Applied Physics Department
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