June 26, 2023 to July 21, 2023
Albano Building 3
Europe/Stockholm timezone

Seven-Point Singularities and the One-Loop n-gon Integral

Jul 14, 2023, 10:30 AM
Albano 3: 4204 - SU Conference Room (56 seats) (Albano Building 3)

Albano 3: 4204 - SU Conference Room (56 seats)

Albano Building 3

Hannes Alfvéns väg 12, 10691 Stockholm, Sweden


Anastasia Volovich (Brown University)


This talk will cover two separate topics on the mathematical structure of Feynman integrals and scattering amplitudes. In the first part, I will discuss an attempt to determine what can be said, on general grounds, about the singularities of seven-point amplitudes in massless planar theories. One motivation is that this provides essential input into the bootstrap program that has allowed the computation of these amplitudes to high loop order in N=4 Yang-Mills. In the second part, I will explain how a recent mathematical result on volumes of orthoschemes can be used to provide an explicit analytic result for the one-loop scalar n-gon Feynman integral in n dimensions, for even n, with massless or massive internal and external edges.

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