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Causality, Analyticity and an IR Obstruction to UV Completion
We argue that certain apparently consistent low-energy effective field theories described by local, Lorentz-invariant Lagrangians, secretly exhibit macroscopic non-locality and cannot be embedded in any UV theory whose S-matrix satisfies canonical analyticity constraints. The obstruction involves th...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
2006
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1126-6708/2006/10/014 http://cds.cern.ch/record/930469 |