Nov 23 – 25, 2020
Europe/Stockholm timezone

A careful look at phase transitions in the Standard Model Effective Field Theory (SMEFT)

Nov 25, 2020, 9:45 AM
15m

Speaker

Dr José Eliel Camargo Molina (Uppsala University)

Description

It is well known that quantum and temperature corrections to the scalar potential are important when considering vacuum dynamics and phase transition phenomena. It is also true that a naive application of perturbation theory gives gauge dependent results. Further complications arise when one is considering dim $d>4$ operators in the Lagrangian.
In this work we present an extended prescription to consistently perform such calculations in a gauge invariant way, and apply it to the determination of the strength of the Electroweak Phase Transition in the SMEFT (Standard Model Effective Field Theory). In particular we discuss whether a first order phase transition is consistent with current limits on the SMEFT coefficients coming from all available data.

Abstract Track Astroparticle physics

Primary authors

Dr José Eliel Camargo Molina (Uppsala University) Rikard Enberg (Uppsala University) Mr Johan Löfgren (Uppsala University)

Presentation materials