25–29 Jul 2022
Max Planck Institute for Nuclear Physics, Heidelberg, Germany
Europe/Zurich timezone

Electroweak Baryogenesis and Dark Matter with an Inert Doublet

26 Jul 2022, 14:36
18m
Lindner Seminar Room

Lindner Seminar Room

Particle Physics Parallel Session C

Speaker

Sven Fabian (Max-Planck-Institut für Kernphysik)

Description

The Standard Model (SM) of Particle Physics cannot account for the long-standing conundrums of the nature of dark matter (DM) and of the obvious imbalance between matter and antimatter in our Universe. Therefore, in this work, I will discuss the Inert Doublet Model (IDM), augmented with higher-dimensional operators, tied either to the SM gauge sector and inducing CP violation or to the SM Higgs sector. In addition to identifying the parameter space for the observed DM relic abundance, we investigate the potential of this operator for giving rise to the measured baryon asymmetry during a multi-step electroweak phase transition. We find that the discussed extension of the IDM can, in principle, serve as an effective theory in which both DM and baryogenesis are accounted for.

Authors

Florian Goertz (Max-Planck-Institut fuer Kernphysik, Heidelberg, Germany) Sven Fabian (Max-Planck-Institut für Kernphysik) Maria Isabel Dias Astros

Presentation materials