Can, Kadir UtkuErkol, GürayOka, M.Ozpineci, A.Takahashi, T. T.2014-05-302014-05-302013-02-120370-2693http://hdl.handle.net/10679/362https://doi.org/10.1016/j.physletb.2012.12.050Using 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 , DDρ and D⁎D⁎ρ coupling 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.engopenAccessarticle7191-310310900031506560001510.1016/j.physletb.2012.12.050Charm mesonsCoupling constantsLattice QCD2-s2.0-84873204895