| Full text | |
| Author(s): |
Ballon-Bayona, Alfonso
;
Krein, Gastao
;
Miller, Carlisson
Total Authors: 3
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW D; v. 96, n. 1, p. 19-pg., 2017-07-21. |
| Abstract | |
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) | |
| FAPESP's process: | 15/17609-3 - Gauge/string duality, hadronic structure and quark-gluon plasma |
| Grantee: | Carlos Alfonso Martin Ballon Bayona |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 13/01907-0 - São Paulo Research and Analysis Center |
| Grantee: | Sergio Ferraz Novaes |
| Support Opportunities: | Research Projects - Thematic Grants |