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
- DOIDOI
- 10.1063/1.5130988
- Časopis / citaceJournal / citation
- In: Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX´19). New York: AIP Conference Proceedings, 2019. p. 020027-1-020027-4. Conference Proceedings. vol. 2165. ISSN 0094-243X. ISBN 978-0-7354-1910-0.
- JazykLanguage
- eng
- WoSWoS
- 000617219100027
- ScopusScopus
- 2-s2.0-85074829824
- RIVRIV
- RIV/68407700:21670/19:00336693!RIV20-MSM-21670___
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
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