9 January 2023
University of Cambridge
Europe/London timezone

How to find the Feynman Rules from any scalar-tensor theory and not collapse in the process

9 Jan 2023, 15:45
25m
Room MR12

Room MR12

Talk Talks

Speaker

Sergio Sevillano

Description

The ability to represent perturbative expansions of interacting quantum field theories in terms of simple diagrammatic rules has revolutionised calculations in particle physics. However, in the case of extended theories of gravity, deriving this set of rules requires linearization of gravity, perturbation of the scalar fields and multiple field redefinitions, making this process very time-consuming and model dependent. In this talk, I will motivate and present FeynMG, a Mathematica extension of FeynRules that automatizes this calculation, allowing for the application of quantum field theory techniques to scalar-tensor theories.

Author

Sergio Sevillano

Co-authors

Ed Copeland (Nottingham University) Michael Spannowsky (IPPP Durham) Dr Peter Millington (University of Manchester)

Presentation materials

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