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Dynamical violation of the Zweig rule and the energy dependence of pi /sup -/p to phi n
The large magnitude and rapid decrease with energy of sigma ( pi /sup -/p to phi n) in the momentum range <6 GeV/c indicate a dynamical breaking of the Zweig rule. An explicit box diagram amplitude is provided for this process. Zweig's rule is obeyed exactly at all vertices. The size and rap...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1976
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(76)90081-2 http://cds.cern.ch/record/874030 |