Seminar “Quantum Field Theory”

Date and Time: Thursday, 9 December 2021, at 4:00 PM

Venue: Blokhintsev lecture hall (4th floor), Bogoliubov Laboratory of Theoretical Physics

Seminar topic: “FeynGrav. Feynman rules for gravity implemented in FeynCalc”

Speaker: B. N. Latosh (BLTP JINR, Dubna State University)

Abstract:

Package FeynGrav that implements an algorithm generating Feynman rules for gravity will be presented. The package operates within FeynCalc framework on Wolfram Mathematica. Firstly, a theoretical framework capable to provide an expression for a gravitational vertex with an arbitrary number of lines will be presented. Secondly, its implementation within FeynCalc will be discussed briefly. Lastly, some results obtained with FeynGrav will be presented and discussed. Namely, I will discuss 2->2 tree level graviton scattering; one-loop two-point graviton functions; one-loop two-point matter functions; one-loop scalar-graviton vertex. The package is currently available on the link.