2012/12/31 by Р. Н. Фаустов, R. N. Faustov, V. O. Galkin · 4 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.87.034033
29 pages, 10 figures, version to be published in Physical Review D
arxiv created 2013/02/11 · openalex publication_date 2013/02/20 · arxiv updated 2013/03/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The form factors of weak decays of Bs mesons to ground state Ds(*) mesons as well as to their radial Ds(*)(2S) and orbital DsJ(*) excitations are calculated in the framework of the relativistic quark model based on the quasipotential approach. All relativistic effects, including contributions of intermediate negative-energy states and boosts of the meson wave functions, are consistently taken into account. As a result, the form factors are determined in the whole kinematical range without additional phenomenological parametrizations and extrapolations. On this basis, semileptonic decay branching fractions are calculated. Two-body nonleptonic Bs decays are considered within the factorization approximation. The obtained results agree well with available experimental data.