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On amplitude zeros at threshold
The occurrence of zeros of 2 to n amplitudes at threshold in scalar theories is studied. We find a differential equation for the scalar potential, which incorporates all known cases where the 2 to n amplitudes at threshold vanish for all sufficiently large $n$, in all space-time dimensions, $d\ge 1$...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1993
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(93)91764-E https://dx.doi.org/10.1016/0370-2693(93)90637-W https://dx.doi.org/10.1016/0370-2693(93)91765-F http://cds.cern.ch/record/244813 |