Two neutrino double-beta decay and effective axial-vector coupling constant
- NázevTitle
- Two neutrino double-beta decay and effective axial-vector coupling constantTwo neutrino double-beta decay and effective axial-vector coupling constant
- Druh výsledkuResult type
- Příspěvek ve sborníkuProceedings paper
- AutořiAuthors
- F. Šimkovic, R. Dvornicky, D. Stefanik
- DOIDOI
- 10.1051/epjconf/201819402002
- Časopis / citaceJournal / citation
- In: International Conference on Nuclear Structure and Related Topics (NSRT18). Les Ulis Cedex A: EPJ Web of Conferences, 2018. p. 1-6. vol. 194. ISSN 2100-014X.
- JazykLanguage
- eng
- WoSWoS
- 000570804200009
- ScopusScopus
- 2-s2.0-85057807693
- RIVRIV
- RIV/68407700:21670/18:00355011!RIV22-MSM-21670___
- ProjektProject
- Podzemní laboratoř LSM - česká účast ve výzkumné infrastruktuře evropského významuUnderground laboratory LSM - Czech participation to European-level research infrastructure
AbstraktAbstract
The theoretical and experimental study of the two-neutrino double-beta decay (2v beta beta-decay) is of crucial importance for reliable calculation of matrix elements governing the neutrinoless double-beta decay (0v beta beta-decay). That will allow to determine masses of neutrinos once the 0v beta beta-decay, which occurs if the neutrino is a massive Majorana particle and the total lepton number is not conserved, will be observed. Experiments studying the 2v beta beta-decay are currently approaching a qualitatively new level, where high-precision measurements are performed not only for half-lives but for all other observables of the process. In this context an improved formula for the 2v beta beta-decay is presented. Further, a novel approach for determining the effective axial-vector coupling constant is proposed.
The theoretical and experimental study of the two-neutrino double-beta decay (2v beta beta-decay) is of crucial importance for reliable calculation of matrix elements governing the neutrinoless double-beta decay (0v beta beta-decay). That will allow to determine masses of neutrinos once the 0v beta beta-decay, which occurs if the neutrino is a massive Majorana particle and the total lepton number is not conserved, will be observed. Experiments studying the 2v beta beta-decay are currently approaching a qualitatively new level, where high-precision measurements are performed not only for half-lives but for all other observables of the process. In this context an improved formula for the 2v beta beta-decay is presented. Further, a novel approach for determining the effective axial-vector coupling constant is proposed.