| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000403417 |
| ISSN: | 0103-9733 |
| Authors: | Nielsen, M1 Navarra, F.S1 Bracco, M.E2 |
| Institutions: | 1Universidade de Sao Paulo, Instituto de Fisica, Sao Paulo. Brasil |
| Year: | 2007 |
| Season: | Mar |
| Volumen: | 37 |
| Number: | 1 |
| Pages: | 56-58 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | Using the QCD sum rule approach we investigate the vertex associated with the decay D (Sup 0) (0 (Sup +)) → D (Sup +) π (Sup −), where the scalar meson D (Sup 0) (0 (Sup +))is considered as a four-quark state (cd)(u¯d¯). Although our results for the mass and partial decay width are smaller than the mass and the total decay width of the broad scalar meson D 0 (Sup *0) (2308) reported by BELLE Collaboration, we can not discard the possibility that the BELLE's resonance can be interpreted as the four-quark state studied here |
| Disciplines: | Física y astronomía |
| Keyword: | Física de partículas y campos cuánticos, Teoría cuántica de campos, Cromodinámica cuántica, Tetraquarks, Hadrones |
| Keyword: | Physics and astronomy, Particle physics and quantum fields, Quantum field theory, Quantum chromodynamics (QCD), Tetraquarks, Hadrons |
| Full text: | Texto completo (Ver PDF) |
