Phase-space factors and half-life predictions for Majoron-emitting β−β− decay
Abstract
A complete calculation of phase space factors (PSFs) for Majoron-emitting 0νβ − β − decay modes is presented. The calculation makes use of exact Dirac wave functions with finite nuclear size and electron screening and includes lifetimes, single-electron spectra, summed electron spectra, and angular electron correlations. Combining these results with recent microscopic interacting boson model nuclear matrix elements (NMEs) we make half-life predictions for the ordinary Majoron decay (spectral index n=1 ). Furthermore, comparing theoretical predictions with the obtained experimental lower bounds for this decay mode we are able to set limits on the effective Majoron-neutrino coupling constant ⟨g M ee ⟩.
Main Authors
Format
Articles
Research article
Published
2015
Series
Subjects
Publication in research information system
Publisher
American Physical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201512174090Use this for linking
Review status
Peer reviewed
ISSN
0556-2813
DOI
https://doi.org/10.1103/PhysRevC.91.064310
NB.
Artikkeliin liittyy Erratum.
Please see also
http://dx.doi.org/10.1103/PhysRevC.92.029903
Language
English
Published in
Physical Review C
Citation
- Kotila, J.-M., Barea, J., & Iachello, F. (2015). Phase-space factors and half-life predictions for Majoron-emitting β−β− decay. Physical Review C, 91(6), Article 064310. https://doi.org/10.1103/PhysRevC.91.064310
License
Copyright© 2015 American Physical Society. This is an Open Access article under the terms of the Creative Commons License which permits use, distribution and reproduction in any medium, provided the original work is properly cited.