Charmed mesons with a symmetry-preserving contact interaction
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 Ds* mesons. The predictions of the model are in good agreement with available experimental and lattice QCD data.
- Publication:
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Physical Review D
- Pub Date:
- July 2017
- DOI:
- 10.1103/PhysRevD.96.014013
- arXiv:
- arXiv:1703.09181
- Bibcode:
- 2017PhRvD..96a4013S
- Keywords:
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- High Energy Physics - Phenomenology;
- High Energy Physics - Lattice;
- Nuclear Theory
- E-Print:
- Phys. Rev. D 96, 014013 (2017)