# Expansion by Regions for Feynman Integrals

#### Expansion by Regions for Feynman Integrals

- Event time: 2:00pm until 3:00pm
- Event date: 6th October 2021
- Speaker: Dr Stephen Jones (Durham University)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

In this talk we will discuss the application of the method of "expansion by regions" to Feynman integrals. After briefly reviewing the motivation for this method and its application in momentum space, we will describe the procedure in the space of Feynman parameters. Here, the method has a geometric interpretation which can be used to uncover the relevant "regions". A few caveats and open questions will be highlighted. Finally, we will demonstrate the use of an automated tool for the numerical computation of Feynman integrals, pySecDec, in which this method was recently implemented.

#### Event resources

### About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..