QCD Seminars

Andrew McLeod (CERN) - New Constraints on the Singularities of Feynman Integrals

Europe/Zurich
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

24
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Description

Since the late fifties, it has been known that the singularities of Feynman integrals are described by the Landau equations. In this talk, I show that standard Landau analysis can also be generalized to predict where in the final expression for Feynman integrals each singularity can occur, and derive graphical rules for determining when specific sequences of singularities (and thus discontinuities) are allowed. I focus on the example of Feynman diagrams involving all generic masses.

Videoconference
QCD seminars
Zoom Meeting ID
62752332519
Host
Elena Gianolio
Alternative hosts
Pier Francesco Monni, Valentin Jonathan Hirschi, Michelangelo Mangano, Samuel Abreu, Julien Baglio, Alexander Yohei Huss
Passcode
37431264
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