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Positive Moments for Scattering Amplitudes
We find the complete set of conditions satisfied by the forward 2-to-2 scattering amplitude in unitarity and causal theories. These are based on an infinite set of energy dependent quantities – the arcs – which are dispersively expressed as moments of a positive measure defined at (arbitrarily) high...
| Autores principales: | , , , , |
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| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2734101 |