| Texto completo | |
| Autor(es): |
Silveira, Roberto Correa da
;
Serna, Fernando E.
;
El-Bennich, Bruno
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW D; v. 107, n. 3, p. 11-pg., 2023-02-23. |
| Resumo | |
We calculate the strong decay couplings for rho -> pi pi, phi -KK, K*-> K pi, and D*-> D pi in a unified and consistent approach based on the impulse approximation, nonperturbative solutions of the quark-gap equation and the Poincare invariant Bethe-Salpeter amplitudes of vector and pseudoscalar mesons. In particular, we obtain the coupling gD*D pi = 17.24(-2.30)(3.06) in very good agreement with the experimental value by CLEO, which corresponds to a strong effective coupling between heavy vector and pseudoscalar mesons to the pion of (g) over cap = 0.58(-0.08) (0.10) . (AU) | |
| Processo FAPESP: | 18/20218-4 - Cromodinâmica quântica para praticantes: entendendo os experimentos atuais no Jefferson Lab e preparando o futuro para o Electron-Ion Collider e o Facility for Antipróton and Íon Research |
| Beneficiário: | Bruno Omar El Bennich |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |