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The XXX International Conference on Neutrino Physics and Astrophysics (Neutrino 2022)

30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

New results on exotic double-beta decay modes of 76Ge from GERDA Phase II

Not scheduled
5m
Virtual Seoul

Virtual Seoul

Poster Neutrinoless double beta decay

Description

Double-beta decays are amongst the rarest nuclear processes ever observed and a powerful source of physics beyond the Standard model. Violation of Lorentz symmetry or the existence of new particles, like Majorons or sterile neutrinos, would affect the shape of the measured two-electrons spectrum, originating detectable and characteristic signatures.
Precision studies of the electron sum energies require ultra-low background and an excellent understanding of the experiment’s response. Both are key features of the Germanium Detector Array (GERDA) experiment, which searched for neutrino-less double beta (0$\nu\beta\beta$) decay with enriched high purity germanium detectors in Liquid Argon at Laboratori Nazionali del Gran Sasso (LNGS) in Italy. In this contribution, new results on exotic double-beta decay modes of $^{76}$Ge obtained with data collected during Phase II of the GERDA experiment will be presented.

Collaboration GERDA Collaboration

Primary author

Elisabetta Bossio (Technische Universität München (TUM))