Strong Couplings of Three Mesons with Charm(ing) Involvement

Abstract

We determine the strong couplings of three mesons that involve, at least, one ${\eta }_c$ or $J/\psi$ meson, within the framework of a constituent-quark model by means of relativistic dispersion formulations. For strong couplings of $J/\psi$ mesons to two charmed mesons, our approach leads to predictions roughly twice as large as those arising from QCD sum rules.

5 pages, 3 figures, contributed to "Quark Confinement and the Hadron Spectrum XII" (28 August - 3 September 2016, Thessaloniki, Greece)

References in corpus (6)

• Big-Bang Nucleosynthesis
• Update: Precision D_s decay constant from full lattice QCD using very fine lattices
• Decay constants of the charmed vector mesons $D^{\ast }$ and $D_s^{\ast }$ from QCD sum rules
• Constituent quarks, chiral symmetry, and chiral point of the constituent quark model
• Fall-apart decays of polyquark hadrons
• A QCD sum rules calculation of the $J/\psi D_s^{\ast }{D}_s$ strong coupling constant