19 de setembro de 2018 | Altas Energias, Publicações
F. E. Serna, B. El-Bennich, G. Krein
Phys. Rev. D 96, 014013
19/07/2017
Abstract
A symmetry-preserving treatment of a vector-vector contact interaction is used to study charmed heavy-light mesons. The contact interaction is a representation of nonperturbative kernels used in Dyson-Schwinger and Bethe-Salpeter equations of QCD. The Dyson-Schwinger equation is solved for the u,d,s and c quark propagators and the bound-state Bethe-Salpeter amplitudes respecting spacetime-translation invariance and the Ward-Green-Takahashi identities associated with global symmetries of QCD are obtained to calculate masses and electroweak decay constants of the pseudoscalar π,K, D and Ds and vector ρ, K∗, D∗, and D∗s mesons. The predictions of the model are in good agreement with available experimental and lattice QCD data.