| Texto completo | |
| Autor(es): |
Ballon-Bayona, Alfonso
;
Krein, Gastao
;
Miller, Carlisson
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW D; v. 96, n. 1, p. 19-pg., 2017-07-21. |
| Resumo | |
We extend the two-flavor hard-wall holographic model of Erlich, Katz, Son, and Stephanov [Phys. Rev. Lett. 95, 261602 (2005)] to four flavors to incorporate strange and charm quarks. The model incorporates chiral and flavor symmetry breaking and provides a reasonable description of masses and weak decay constants of a variety of scalar, pseudoscalar, vector, and axial-vector strange and charmed mesons. In particular, we examine flavor symmetry breaking in the strong couplings of the rho meson to the charmed D and D* mesons. We also compute electromagnetic form factors of the pi, rho, K, K*, D and D* mesons. We compare our results for the D and D* mesons with lattice QCD data and other nonperturbative approaches. (AU) | |
| Processo FAPESP: | 15/17609-3 - Dualidade gauge/string, estrutura hadrônica e o plasma de quarks e glúons |
| Beneficiário: | Carlos Alfonso Martin Ballon Bayona |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 13/01907-0 - Centro de Pesquisa e Análise de São Paulo |
| Beneficiário: | Sergio Ferraz Novaes |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |