Speaker
Dr
Hjalte Axel Frellesvig
(University of Padova)
Description
When finding linear relations between Feynman integrals using integration-by-parts identities, a very large linear system has to be solved as an intermediate step.
This makes other approaches to the derivation of these identities a worthwhile pursuit. In this context, the concept of the intersection number is of interest, as it allows for the definition of (what amounts to) a scalar product between Feynman integrals, allowing the coefficients of the master integrals to be extracted using ordinary projections in the space of Feynman integrals.
Using this novel method, we will derive and discuss a number of identities between Feynman integrals relevant for Higgs physics.
Author
Dr
Hjalte Axel Frellesvig
(University of Padova)
Co-authors
Prof.
Pierpaolo Mastrolia
(University of Padova)
Dr
Stefano Laporta
(University of Padova)
Dr
Manoj Mandal
(University of Padova)
Mr
Federico Gasparotto
(University of Padova)
Mr
Luca Mattiazzi
(University of Padova)
Dr
Sebastian Mizera
(Perimeter institute)
