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Dispersive analysis of the decay $\eta$ -> 3 $\pi$
We demonstrate that the decay eta -> 3 pi represents a sensitive probe for the breaking of chiral symmetry by the quark masses. The transition amplitude is proportional to the mass ratio (m_d^2-m_u^2)/(m_s^2-m^2). The factor of proportionality is calculated by means of dispersion relations, using...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1996
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(96)00192-X http://cds.cern.ch/record/293997 |