Reliability of QRPA approach to ββ and β decays
- NázevTitle
- Reliability of QRPA approach to ββ and β decaysReliability of QRPA approach to ββ and β decays
- Druh výsledkuResult type
- Příspěvek ve sborníkuProceedings paper
- AutořiAuthors
- J. Terasaki, Y. Iwata
- Klíčová slovaKeywords
- double beta decay, QRPA
- KonferenceConference
- Matrix Elements for the Double-beta-decay EXperiments (2019-05-27)
- DOIDOI
- 10.1063/1.5130988
- Časopis / citaceJournal / citation
- In: AIP Conference Proceedings 2165, AIP Publishing, 2019, pp. 020027 · ISSN 0094-243X
- RokYear
- 2019
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
We investigate the reliability of the quasiparticle random-phase approximation (QRPA) in application to the nuclear matrix element (NME) of the double-β decay of 136Xe. We examine the dependence of the NME of the two-neutrino double-β (2νββ ) decay on the choice of the set of the intermediate-state energies, spectrum of the intermediate nucleus, the Gamow-Teller (GT) strength distribution, the GT strengths of the β decays of a nearby nucleus, and a higher-order term of the 2νββ NME recently proposed. The QRPA approach is a good approximation to the decay instance of 136Xe→136Ba
We investigate the reliability of the quasiparticle random-phase approximation (QRPA) in application to the nuclear matrix element (NME) of the double-β decay of 136Xe. We examine the dependence of the NME of the two-neutrino double-β (2νββ ) decay on the choice of the set of the intermediate-state energies, spectrum of the intermediate nucleus, the Gamow-Teller (GT) strength distribution, the GT strengths of the β decays of a nearby nucleus, and a higher-order term of the 2νββ NME recently proposed. The QRPA approach is a good approximation to the decay instance of 136Xe→136Ba