Statut | Confirmé |
Série | IPHT-HEP |
Domaines | hep-ph |
Date | Mercredi 28 Juin 2017 |
Heure | 14:15 |
Institut | IPHT |
Salle | Salle Claude Itzykson, Bât. 774 |
Nom de l'orateur | Ruth Britto |
Prenom de l'orateur | |
Addresse email de l'orateur | |
Institution de l'orateur | Trinity College Dublin |
Titre | A Hopf algebra for Feynman diagrams and integrals |
Résumé | I will present a combinatorial operation on one-loop Feynman diagrams, described by cutting and pinching edges, that corresponds to the Hopf-algebraic coaction on the multiple polylogarithms resulting from their integration. A generalization of this operation, expressed simply in terms of master integrands paired with master contours, can be applied directly to larger classes of functions including hypergeometric functions. I will discuss applications to analyses of discontinuities of and differential equations for Feynman diagrams. |
Numéro de preprint arXiv | |
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