| Full text | |
| Author(s): |
El-Bennich, Bruno
;
Krein, Gastao
;
Chang, Lei
;
Roberts, Craig D.
;
Wilson, David J.
Total Authors: 5
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW D; v. 85, n. 3, p. 6-pg., 2012-02-07. |
| Abstract | |
Using a framework in which all elements are constrained by Dyson-Schwinger equation studies in QCD, and therefore incorporate a consistent, direct and simultaneous description of light-and heavy-quarks and the states they constitute, we analyze the accuracy of SU(4)-flavor symmetry relations between pi rho pi, K rho K, and D rho D couplings. Such relations are widely used in phenomenological analyses of the interactions between matter and charmed mesons. We find that while SU(3)-flavor symmetry is accurate to 20%, SU(4) relations underestimate the D rho D coupling by a factor of 5. (AU) | |
| FAPESP's process: | 10/05772-3 - Hadronic effects in heavy-quark physics |
| Grantee: | Bruno Omar El Bennich |
| Support Opportunities: | Scholarships in Brazil - Young Researchers |
| FAPESP's process: | 09/50180-0 - Study of hadronic interactions at high energies |
| Grantee: | Yogiro Hama |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 09/51296-1 - Hadronic effects in heavy-quark physics |
| Grantee: | Bruno Omar El Bennich |
| Support Opportunities: | Research Grants - Young Investigators Grants |