Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 31: Beyond the Standard Model (Theory) 1

T 31.7: Vortrag

Dienstag, 22. März 2022, 17:45–18:00, T-H16

Electroweak Baryogenesis in the Inert Doublet Model — •Sven Fabian, Florian Goertz, and María Isabel Dias Astros — Max-Planck-Institut für Kernphysik, Heidelberg, Deutschland

Despite the great success of the Standard Model (SM) of Particle Physics in explaining many experimental observations to an astonishing degree of accuracy, it cannot account for the long-standing conundrums of the nature of dark matter (DM) and of the obvious dominant abundance of matter compared to antimatter in our Universe. In this talk, we will discuss the Inert Doublet Model, augmented with a higher-dimensional operator tied to the SM gauge sector and -- vital for baryogenesis -- inducing CP violation. 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 the electroweak phase transition. We will 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.