Status | Confirmed |
Seminar Series | IPHT-HEP |
Subjects | hep-ph |
Date | Wednesday 28 June 2017 |
Time | 14:15 |
Institute | IPHT |
Seminar Room | Salle Claude Itzykson, Bât. 774 |
Speaker's Last Name | Ruth Britto |
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Speaker's Institution | Trinity College Dublin |
Title | A Hopf algebra for Feynman diagrams and integrals |
Abstract | 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. |
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