Double β Decay and the Axial Strength
Abstract
Quenching of the weak axial strength gA is discussed and relations of this quenching to the nuclear matrix elements of double beta decays are highlighted. An analysis of Gamow-Teller transitions in the mass range A = 62 − 142 is presented and its results are compared with those of many previous works. The enhancement of the axial charge is discussed for first-forbidden pseudoscalar β transitions. Higher-forbidden β transitions are introduced and their role in determining the effective value of gA is examined, in particular from the point of view of the β-decay half-lives and the shapes of electron spectra of forbidden non-unique β transitions.
Main Authors
Format
Articles
Research article
Published
2019
Series
Subjects
Publication in research information system
Publisher
Frontiers Research Foundation
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201903201920Use this for linking
Review status
Peer reviewed
ISSN
2296-424X
DOI
https://doi.org/10.3389/fphy.2019.00029
Language
English
Published in
Frontiers in Physics
Citation
- Suhonen, J., & Kostensalo, J. (2019). Double β Decay and the Axial Strength. Frontiers in Physics, 7, Article 29. https://doi.org/10.3389/fphy.2019.00029
License
Copyright© 2019 Suhonen and Kostensalo.