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Low-scale leptogenesis and the quest for heavy neutral leptons
The type-I seesaw extension of the Standard Model explains the origin of neutrino masses in an elegant and minimalistic way. This extension introduces new massive particles -- heavy neutral leptons. These particles are in the spotlight of many experimental searches. Intriguingly, the same particles can be responsible for the matter-antimatter asymmetry, which is another mystery within the Standard Model.
In this talk, I will discuss the mechanism of asymmetry generation, known as leptogenesis, and its consequences for the experiments.
Based on 1808.10833, 2008.13771, 2103.16545 (theory of leptogenesis)
1912.05520, 2101.09255 (link to experiments)