Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines hep-th
Date Jeudi 27 Fevrier 2020
Heure 10:00
Institut IHP
Salle 314
Nom de l'orateur Adamo
Prenom de l'orateur Timothy
Addresse email de l'orateur
Institution de l'orateur Edinburgh
Titre Scattering in chiral strong backgrounds
Résumé There are many reasons to be interested in perturbative quantum field theory in the presence of strong background fields, but surprisingly little is known in these scenarios, especially when compared to trivial backgrounds. For instance, the full semi-classical S-matrices of gauge theory and gravity are known in a trivial perturbative background, but even for simple strong backgrounds the tree-level amplitudes of these theories have not been computed beyond four-external particles. This raises the question: are all-multiplicity formulae (and other hallmarks of the study of scattering amplitudes in recent years) inextricably tied to trivial backgrounds? In this talk, I will demonstrate that for the simplest strong backgrounds (chiral plane waves in four-dimensions), we can find all-multiplicity expressions for tree-level scattering amplitudes which are remarkably simple and clearly un-related to the standard perturbative expansion of background-coupled field theory.
Numéro de preprint arXiv
Fichiers attachés
  • Paris20.pdf (486237 bytes) OPEN

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