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 |