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Partial widths for the decays $\eta(1295) \to \gamma\gamma$ and $\eta(1440) \to \gamma\gamma$
We discuss gamma gamma partial widths of pseudoscalar/isoscalar mesons eta(M) in the mass region M = 1000-1500 MeV. The transition amplitudes eta(1295) -> gamma gamma and eta(1440) -> gamma gamma are studied within an assumption that the decaying mesons are the members of the first radial exci...
| Autores principales: | , , , |
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| Lenguaje: | eng |
| Publicado: |
1999
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1007/s100500050342 http://cds.cern.ch/record/403554 |