Effects of a dressed quark-gluon vertex in vector heavy-light mesons and theory average of theBc*meson mass

2016/02/29 by María Gómez-Rocha, M. Gomez-Rocha, T. Hilger +1
Mathematics · Physics and Astronomy · #Combinatorics #Context (archaeology) #Gluon #High-Energy Particle Collisions Research #Mathematics #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Quantum Chromodynamics and Particle Interactions #Quark #Vector meson #Vertex (graph theory) #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevd.93.074010

published as Phys. Rev. D 93, 074010 (2016) · 16 pages, 7 figures, 2 tables, revised version incorporating reviewer comments

arxiv created 2016/03/23 · openalex publication_date 2016/04/08 · arxiv updated 2016/04/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We extend earlier investigations of heavy-light pseudoscalar mesons to the vector case, using a simple model in the context of the Dyson-Schwinger-Bethe-Salpeter approach. We investigate the effects of a dressed quark-gluon vertex in a systematic fashion and illustrate and attempt to quantify corrections beyond the phenomenologically very useful and successful rainbow-ladder truncation. In particular we investigate the dressed quark-photon vertex in such a setup and make a prediction for the experimentally as yet unknown mass of the B_c^*, which we obtain at 6.334 GeV well in line with predictions from other approaches. Furthermore, we combine a comprehensive set of results from the theoretical literature. The theoretical average for the mass of the B_c^* meson is 6.336\ifmmode±\else\textpm\fi0.002 GeV.

Citations

• Effects of a dressed quark-gluon vertex in pseudoscalar heavy-light mesons
• Properties of quarks and mesons in the Dyson-Schwinger/Bethe-Salpeter approach
• Bc Meson Spectrum and Hyperfine Splittings in the Shifted Large-N-Expansion Technique
• Bcspectroscopy in a quantum-chromodynamic potential model
• Bc AND HEAVY MESON SPECTROSCOPY IN THE LOCAL APPROXIMATION OF THE SCHRÖDINGER EQUATION WITH RELATIVISTIC KINEMATICS
• Probing the Gluon Self-Interaction in Light Mesons
• Universal description ofS-wave meson spectra in a renormalized light-cone QCD-inspired model
• πandρmesons, and their diquark partners, from a contact interaction
• Dyson-Schwinger equations: An instrument for hadron physics
• Quark-photon vertex and the pion charge radius
• Bethe-Salpeter equation and a nonperturbative quark-gluon vertex
• Analysis of a quenched lattice-QCD dressed-quark propagator
• Bc meson and the light-heavy quarkonium spectrum
• ηandη′mesons in the Dyson-Schwinger approach at finite temperature
• Aspects and consequences of a dressed-quark-gluon vertex
• Rho-meson, Bethe-Salpeter equation, and the far infrared
• Schwinger Functions and Light-Quark Bound States
• Electromagnetic properties of ground-state and excited-state pseudoscalar mesons
• Prediction of theBc*Mass in Full Lattice QCD
• Survey of heavy-meson observables
• Modelling the quark propagator
• Confinement, DCSB, bound states, and the quark-gluon vertex
• Bc spectroscopy from lattice QCD
• Big-Bang Nucleosynthesis