Hadrons in a nonperturbative continuum approach to QCD beyond rainbows and ladders
Study of meson and nucleon properties in vacuum and in nuclear medium based on the...
Exploring electroweak symmetry breaking and the nature of dark matter
| Full text | |
| Author(s): |
Fontoura, C. E.
;
Haidenbauer, J.
;
Krein, G.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | EUROPEAN PHYSICAL JOURNAL A; v. 53, n. 5 MAY 16 2017. |
| Web of Science Citations: | 4 |
| Abstract | |
The validity of SU(4)-flavor symmetry relations of couplings of charmed D-mesons to light mesons and baryons is examined with the use of P-3(0) quark-pair creation model and nonrelativistic quark-model wave functions. We focus on the three-meson couplings pi pi rho, KK rho and DD rho and baryon-baryon-meson couplings NN pi N Lambda K and N Lambda D-c. It is found that SU(4)-flavor symmetry is broken at the level of 30% in the DD rho tree-meson couplings and 20% in the baryon-baryon-meson couplings. Consequences of these findings for DN cross sections and existence of bound states D-mesons in nuclei are discussed. (AU) | |
| FAPESP's process: | 13/01907-0 - São Paulo Research and Analysis Center |
| Grantee: | Sergio Ferraz Novaes |
| Support Opportunities: | Research Projects - Thematic Grants |