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Quark masses, isospin breaking and the vector piece of pi --> enugamma
The authors discuss a direct way to detect isospin breaking generated by the current quark mass matrix. With PCAC the vector form factor of pi to e nu gamma can be described by a pure current process. In the chiral symmetry limit they prove, to all orders in QCD, that xi =m/sub d//m/sub u/ zero or i...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1978
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(78)90407-0 http://cds.cern.ch/record/133007 |