![School of Natural Sciences Event](/sites/default/files/styles/two_column_medium/public/2019-09/sns_default.jpg?itok=IEu1CLXj)
High Energy Theory Seminar
Amplitudes, Regulators and the Elliptic Dilogarithm: Physics and Arithmetic of the Sunset Diagram in two Dimensions
General arguments indicate that Feynman integrals can be thought as period integrals. In this talk we will focus on the case of the two-loop sunset graph with internal masses. We will show that this integral is given by a period of a variation of a mixed Hodge structure, and can be expressed as an elliptic dilogarithm. We will discuss the relation to the regulator of a class in the motivic cohomology of the universal elliptic family. This is based on the work [arXiv:1309.5865] done in collaboration with Spencer Bloch
Date & Time
October 18, 2013 | 1:30pm – 3:00pm
Location
Bloomberg Lecture HallSpeakers
Pierre Vanhove
Affiliation
Institut des Hautes Etudes Scientifiques, France