Review
Version 1
Preserved in Portico This version is not peer-reviewed
Theoretical Advances in Beta and Double-Beta Decay
Version 1
: Received: 5 February 2024 / Approved: 6 February 2024 / Online: 6 February 2024 (10:51:53 CET)
A peer-reviewed article of this Preprint also exists.
Sevestrean, V.-A.; Stoica, S. Theoretical Advances in Beta and Double-Beta Decay. Symmetry 2024, 16, 390. Sevestrean, V.-A.; Stoica, S. Theoretical Advances in Beta and Double-Beta Decay. Symmetry 2024, 16, 390.
Abstract
Weak interaction processes continue to be hot topics in fundamental physics research. In this paper, we briefly review some recent advances in the theoretical study of beta and double-beta decays that include both the nuclear and atomic part of these processes. On the nuclear side, we present a statistical approach for the computation of the nuclear matrix elements (NME) for neutrinoless double-beta (0νββ). A range of NME values, the most probable value for NME, and the associated theoretical uncertainty are given. Correlations with other related observables are shown as well. On the atomic side, we first briefly review the methods used to get the electrons’ wave functions. Further, we use them for the computation of some relevant kinematic quantities such as Fermi functions, electron spectra and angular correlation between the emitted electrons. Then, we present applications of these calculations to the experimental data analysis related to the search of the Lorentz invariance violation in two-neutrino double-beta (2νββ) decay and description of the decay rates and decay rate ratios for allowed and unique forbidden electron capture (EC) processes.
Keywords
beta decay; double-beta decay; space phase factors; nuclear matrix elements; decay rates; Lorentz violation
Subject
Physical Sciences, Nuclear and High Energy Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment