Exclusive decaysB→ℓ−ν¯andB→D(*)ℓ−ν¯in the covariant quark model

2015/08/31 by Mikhail A. Ivanov, M. A. Ivanov, Jürgen G. Körner +2 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.92.114022

published as Phys. Rev. D 92, 114022 (2015) · 48 pages, 26 figures. References and discussion added. Accepted by Phys.Rev.D for publication

arxiv created 2015/11/23 · openalex publication_date 2015/12/22 · arxiv updated 2015/12/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We study the exclusive leptonic and semileptonic B decays B\ensuremath→\ensuremathℓ^\ensuremath-\ensuremathν_\ensuremathℓ and B\ensuremath→D^(*)\ensuremathℓ^\ensuremath-\ensuremathν_\ensuremathℓ in the framework of the covariant quark model with built-in infrared confinement. We compute the relevant form factors in the full kinematical momentum transfer region. The calculated form factors are used to evaluate branching fractions and polarization observables of the above transitions. We compare our results with experimental data and results from other theoretical studies.

Citations

• Beauty mesons in lattice QCD with exact chiral symmetry
• Diagnosing new physics inb→cτντdecays in the light of the recentBABARresult
• CP violation and the CKM matrix: assessing the impact of the asymmetric B factories
• Relativistic constituent quark model with infrared confinement
• Analysis of semileptonicBdecays in the relativistic quark model
• Semileptonic decays of double heavy baryons
• Lagrangian theory of composite particles
• Heavy-strange meson decay constants in the continuum limit of quenched QCD
• A SUPERSYMMETRY PRIMER
• Survey of heavy-meson observables
• Evidence for an Excess ofB¯→D(*)τ−ν¯τDecays
• Big-Bang Nucleosynthesis

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• Exclusive decays J/ψ→ D_(s)^(*)- ℓ⁺ ν_ℓ in a covariant constituent quark model with infrared confinement