f(0)(980)-meson as a K(K)over-bar molecule in a phenomenological Lagrangian approach
Abstract
We discuss a possible interpretation of the f(0)(980)-meson as a hadronic molecule-a bound state of K and (K) over bar mesons. Using a phenomenological Lagrangian approach we calculate the strong f(0)( 980) -> pi pi and electromagnetic f(0)(980) -> gamma gamma decays. The compositeness condition provides a self-consistent method to determine the coupling constant between f(0) and its constituents, K and (K) over bar. Form factors governing the decays of the f(0)(980) are calculated by evaluating the kaon loop integrals. The predicted f(0)(980) -> pi pi and f(0)(980) -> gamma gamma decay widths are in good agreement with available data and results of other theoretical approaches.
Más información
| Título según WOS: | ID WOS:000259580200005 Not found in local WOS DB |
| Título de la Revista: | EUROPEAN PHYSICAL JOURNAL A |
| Volumen: | 37 |
| Número: | 3 |
| Editorial: | Springer |
| Fecha de publicación: | 2008 |
| Página de inicio: | 303 |
| Página final: | 317 |
| DOI: |
10.1140/epja/i2008-10635-1 |
| Notas: | ISI |