A4 Article in conference proceedings
Double beta decay and the quest for Majorana neutrinos (2020)
Kotila, J. (2020). Double beta decay and the quest for Majorana neutrinos. In INPC2019 : 27th International Nuclear Physics Conference (Article 012023). Institute of Physics. Journal of Physics : Conference Series, 1643. https://doi.org/10.1088/1742-6596/1643/1/012023
JYU authors or editors
Publication details
All authors or editors: Kotila, Jenni
Parent publication: INPC2019 : 27th International Nuclear Physics Conference
Place and date of conference: Glasgow, UK, 29.7.-2.8.2019
Journal or series: Journal of Physics : Conference Series
ISSN: 1742-6588
eISSN: 1742-6596
Publication year: 2020
Number in series: 1643
Article number: 012023
Publisher: Institute of Physics
Publication country: United Kingdom
Publication language: English
DOI: https://doi.org/10.1088/1742-6596/1643/1/012023
Publication open access: Openly available
Publication channel open access: Open Access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/73539
Abstract
The observation of neutrinoless double beta (0νββ) decay remains crucial for understanding lepton number violation. The inverse half-life for 0νββ-decay is given by the product of a phase space factor (PSF), a nuclear matrix element (NME), which both rely on theoretical description, and a function f containing the physics beyond the standard model. Phase space factors and nuclear matrix elements have been evaluated, or are under evaluation, systematically for all processes of interest. The nuclear matrix elements have been calculated within the framework of the microscopic interacting boson model (IBM-2), and phase space factors have been evaluated using exact Dirac electron wave functions. The current situation is then discussed by combining the theoretical results with experimental limits on the half-life of neutrinoless double beta decay. The extracted limits on the average light neutrino mass are addressed, complemented with a discussion of other possible 0νββ-decay mechanisms and scenarios.
Keywords: nuclear physics; particle physics
Contributing organizations
Related projects
- Theoretical tools for rare nuclear decays and dark matter searches
- Kotila, Jenni
- Research Council of Finland
- Theoretical tools for rare nuclear decays and dark matter searches
- Kotila, Jenni
- Research Council of Finland
Ministry reporting: Yes
Reporting Year: 2020
JUFO rating: 1