2013/09/06 by B. Osório Rodrigues, Bruno Osório Rodrigues, Mirian E. Bracco +3 · 19 citations
Mathematics · Physics and Astronomy · #Combinatorics #Coupling constant #Formalism (music) #High-Energy Particle Collisions Research #Mathematical physics #Mathematics #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Vertex (graph theory) #hep-ph
paper · pdf · doi:10.1016/j.nuclphysa.2014.06.008
published in Nuclear Physics A 929, 143-156 (Elsevier BV) · 15 pages, 6 figures
arxiv created 2013/09/06 · openalex publication_date 2014/06/20 · arxiv updated 2014/12/02 · openalex created_date 2017/08/31 · openalex updated_date 2026/08/05
The coupling constant of the meson vertex J/ψDs Ds is calculated using the three point correlation function within the QCD Sum Rule formalism. We have considered alternately mesons J/ψ and Ds off-shell together with non-perturbative contributions up to the mixed quark-gluon condensates. When extrapolated, these two different form factors give the same coupling constant for the process gJ/ψDs Ds = 5.98+0.67-0.58.