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A rigorous lower bound on the scattering amplitude at large angle
We prove a lower bound for the modulus of the amplitude for a two-body process at large scattering angles. This is based on the interplay of the analyticity of the amplitude and the positivity properties of its absorptive part. The assumptions are minimal, namely, those of local quantum field theory...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.99.114025 http://cds.cern.ch/record/2667526 |