Vector and axial-vector couplings of D and D* mesons in 2+1 flavor Lattice QCD

Abstract

Using the axial-vector coupling and the electromagnetic form factors of the D and D* mesons in 2+1 flavor Lattice QCD, we compute the D*Dπ, DDρand D*D*ρcoupling constants, which play an important role in describing the charm hadron interactions in terms of meson-exchange models. We also extract the charge radii of D and D* mesons and determine the contributions of the light and charm quarks separately.

19 pages, 3 figures; added references and comments, published version

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Cited by in corpus (7)

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• ${\Omega }_c\gamma \to {\Omega }_c^{\ast }$ transition in lattice QCD
• Production of charmed pseudoscalar mesons in antiproton-proton annihilation
• Flavor structure of $\Lambda$ baryons from lattice QCD: From strange to charm quarks
• SU(4) flavor symmetry breaking in D-meson couplings to light hadrons
• ${\Lambda }_c{\Sigma }_c\pi$ coupling and ${\Sigma }_c\to {\Lambda }_c\pi$ decay in lattice QCD
• Charmed and light pseudoscalar meson decay constants from HISQ simulations