A review on the advances of an effective model of QCD at low energy
A review on the advances of an effective model for QCD at low energy is given. The basic ingredients of the model are two fermion levels for the quarks, one at positive and one at negative energy. The quarks in these levels are interacting with a boson level, occupied by pairs of gluons with color a...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2006 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:57020498008 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57020498008 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas Low energy QCD hadron spectrum quark gluon plasma |
| Sumario: | A review on the advances of an effective model for QCD at low energy is given. The basic ingredients of the model are two fermion levels for the quarks, one at positive and one at negative energy. The quarks in these levels are interacting with a boson level, occupied by pairs of gluons with color and spin zero. The meson and baryon spectrum can be described with satisfaction, including the microscopic structure of the nucleon. The Roper resonance is well reproduced and also the position of the pentaquark, though with a possible large width. The vacuum properties are discussed as new partial results. The model was applied to high energy collisions of heavy nuclei, too. |
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