No Access

The and systems with the fixed center approximation to Faddeev equations

Department of Physics, Guangxi Normal University, Guilin 541004, China

Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Apartado 22085, 46071 Valencia, Spain

Search for more papers by this author

, and

E. Oset

Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigación de Paterna, Apartado 22085, 46071 Valencia, Spain

Search for more papers by this author

https://doi.org/10.1142/9789814618229_0018Cited by:0 (Source: Crossref)

Abstract:

We investigate the three-body systems of and , by taking the fixed center approximation to Faddeev equations. We find a clear and stable resonance structure around 1490 MeV in the scattering amplitude for the system, which is not sensitive to the renormalization parameters. This resonance is associated to the η(1475). We get only an enhancement effect of the threshold in the amplitude.