Strength of the isoscalar pairing interaction determined by a relation between double-charge change and double-pair transfer for double-β decay
- NázevTitle
- Strength of the isoscalar pairing interaction determined by a relation between double-charge change and double-pair transfer for double-β decayStrength of the isoscalar pairing interaction determined by a relation between double-charge change and double-pair transfer for double-β decay
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- J. Terasaki
- Klíčová slovaKeywords
- neutrinoless double beta decay, nuclear matrix element, Quasiparticle Random-Phase Approximation, Gamow-Teller strength, Isoscalar pairing interaction, nuclear density functional theory
- DOIDOI
- 10.1103/PhysRevC.102.044303
- Časopis / citaceJournal / citation
- Physical Review C 102(4), 044303 (2020) · ISSN 2469-9985
- RokYear
- 2020
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Inženýrské aplikace fyziky mikrosvětaEngineering applications of microworld physics
- CitovánoCited by
- 41 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://arxiv.org/pdf/2003.03542
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
A new method has been proposed to determine the strength of the isoscalar proton-neutron pairing interaction applicable to many nuclei. The principle is the equivalence between the double-charge change and the double transfer of like-particle pairs, and a constraint is derived for the effective interactions used in approximations. This method was applied to the quasiparticle random-phase approximation for determining that interaction strength. In this paper, details of this method are explained thoroughly, and applications to nuclei of several instances of the double-β decays are shown. The systematics of the strengths determined for those nuclei is understood in terms of a midshell effect. The effect of the new interaction strength is examined in two examples of the Gamow-Teller strength function with comparisons with the experimental data. The nuclear matrix elements of the neutrinoless double-β decay are also calculated.
A new method has been proposed to determine the strength of the isoscalar proton-neutron pairing interaction applicable to many nuclei. The principle is the equivalence between the double-charge change and the double transfer of like-particle pairs, and a constraint is derived for the effective interactions used in approximations. This method was applied to the quasiparticle random-phase approximation for determining that interaction strength. In this paper, details of this method are explained thoroughly, and applications to nuclei of several instances of the double-β decays are shown. The systematics of the strengths determined for those nuclei is understood in terms of a midshell effect. The effect of the new interaction strength is examined in two examples of the Gamow-Teller strength function with comparisons with the experimental data. The nuclear matrix elements of the neutrinoless double-β decay are also calculated.