Multiple polylogarithms and Feynman integrals

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• Christian Bogner (Humboldt Uni Berlin)
• Friday 14 March 2014, 16:00-17:00
• MR4, CMS, Wilberforce Road, Cambridge, CB3 0WB.

If you have a question about this talk, please contact Damien George.

Most, but not all known Feynman integrals, arising from various quantum field theories, can be expressed by certain generalizations of polylogarithms. I discuss an implementation of multiple polylogarithms in several variables, which is a very general class of such functions, and comment on a criterion which helps to decide, which Feynman integrals can be computed in this framework. I furthermore discuss a result for the two-loop sunrise graph with arbitrary masses, where this criterion is not satisfied.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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