|
Título:
|
Investigation of a_(0)-f_(0) mixing
|
|
Autores:
|
Hanhart, Christoph ;
Kubis, Bastian ;
Peláez Sagredo, José Ramón
|
|
Tipo de documento:
|
texto impreso
|
|
Editorial:
|
Amer Physical Soc, 2007-10
|
|
Dimensiones:
|
application/pdf
|
|
Nota general:
|
info:eu-repo/semantics/openAccess
|
|
Idiomas:
|
|
|
Palabras clave:
|
Estado = Publicado
,
Materia = Ciencias: Física: Física-Modelos matemáticos
,
Materia = Ciencias: Física: Física matemática
,
Tipo = Artículo
|
|
Resumen:
|
We investigate the isospin-violating mixing of the light scalar mesons a_0(980) and f_0(980) within the unitarized chiral approach. Isospin-violating effects are considered to leading order in the quark mass differences and electromagnetism. In this approach both mesons are generated through meson-meson dynamics. Our results provide a description of the mixing phenomenon within a framework consistent with chiral symmetry and unitarity, where these resonances are not predominantly qq? states. Amongst the possible experimental signals, we discuss observable consequences for the reaction J/ ??Ø?^0 ? in detail. In particular, we demonstrate that he effect of a_(0) –f_(0) mixing is by far the most important isospinbreaking effect in the resonance region and can indeed be extracted from experiment.
|
|
En línea:
|
https://eprints.ucm.es/35314/1/pelaezsagredo48libre.pdf
|
