2018/10/31 by Nakul R. Soni, N. Soni, Mikhail A. Ivanov +7
Mathematics · Physics and Astronomy · #Artificial intelligence #Computer science #High-Energy Particle Collisions Research #Mathematics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.98.114031
published as Phys. Rev. D 98, 114031 (2018) · 24 pages, 6 figures, 10 tables, references added, a version to appear on PRD
openalex created_date 2018/11/02 · openalex publication_date 2018/12/26 · arxiv created 2019/01/25 · arxiv updated 2019/01/28 · openalex updated_date 2026/08/05
Inspired by recent improved measurements of charm semileptonic decays at BESIII, we study a large set of D(Ds)-meson semileptonic decays where the hadron in the final state is one of D0, \ensuremathρ, \ensuremathω, \ensuremathη^(\ensuremath') in the case of D+ decays, and D0, \ensuremathφ, K0, K*(892)0, \ensuremathη^(\ensuremath') in the case of Ds+ decays. The required hadronic form factors are computed in the full kinematical range of momentum transfer by employing the covariant confined quark model developed by us. A detailed comparison of the form factors with those from other approaches is provided. We calculate the decay branching fractions and their ratios, which show good agreement with available experimental data. We also give predictions for the forward-backward asymmetry and the longitudinal and transverse polarizations of the charged lepton in the final state.