21–24 Sept 2021
DESY Hamburg
Europe/Berlin timezone

Neutron-antineutron oscillation as a probe of baryogenesis

24 Sept 2021, 10:05
15m
Main Auditorium

Main Auditorium

Cosmology & Astroparticle Physics Parallel Sessions: Cosmology

Speaker

Kåre Fridell (Technical University of Munich)

Description

Neutron-antineutron ($n$-$\bar{n}$) oscillation is a baryon number violating process that will be probed at an unprecedented sensitivity in near future experiments at ESS and DUNE. We study potential impacts of the $n$-$\bar{n}$ oscillation mechanism on the baryon asymmetry of the Universe. Using an effective field theory framework, as well as a simplified model for one of two possible UV-complete topologies of the $n$-$\bar{n}$ operator, we connect a potential $n$-$\bar{n}$ oscillation discovery to baryogenesis, and show the overlap with resonant production at the LHC. We find that successful baryogenesis can be realised in regions of parameter space that are currently unexplored but will be probed by future $n$-$\bar{n}$ oscillation experiments.

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Primary authors

Chandan Hati (Technische Universität München, James-Franck-Straße 1, D-85748 Garching, Germany) Julia Harz (Technical University of Munich (TUM)) Kåre Fridell (Technical University of Munich)

Presentation materials