Two-neutrino double-beta decay Fermi transition and two-nucleon interaction
- NázevTitle
- Two-neutrino double-beta decay Fermi transition and two-nucleon interactionTwo-neutrino double-beta decay Fermi transition and two-nucleon interaction
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- D. Štefánik, F. Šimkovic, K. Muto, A. Faessler
- Klíčová slovaKeywords
- MODEL, suppression, SINGLE
- DOIDOI
- 10.1103/PhysRevC.88.025503
- Časopis / citaceJournal / citation
- Physical Review C 88(2), 025503 (2013) · ISSN 0556-2813
- RokYear
- 2013
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Příspěvek k rozšíření velké výzkumné infrastruktury evropského významuContribution of the Czech Republic to the extension of the large research infrastructure of European importance
- CitovánoCited by
- 7 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://arxiv.org/pdf/1306.6187
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
An exactly solvable model for a description of the two-neutrino double-beta decay transition of the Fermi type is considered. By using perturbation theory an explicit dependence of the two-neutrino double-beta decay matrix element on the like-nucleon pairing, particle-particle, and particle-hole proton-neutron interactions is found by assuming a weak violation of isospin symmetry of the Hamiltonian expressed with generators of the SO(5) group. It is found that there is a dominance of double-beta decay transition through a single state of the intermediate nucleus. Then, an energy-weighted sum rule connecting Delta Z = 2 nuclei is presented and discussed. It is suggested that this sum rule can be exploited to study the residual interactions of the nuclear Hamiltonian.
An exactly solvable model for a description of the two-neutrino double-beta decay transition of the Fermi type is considered. By using perturbation theory an explicit dependence of the two-neutrino double-beta decay matrix element on the like-nucleon pairing, particle-particle, and particle-hole proton-neutron interactions is found by assuming a weak violation of isospin symmetry of the Hamiltonian expressed with generators of the SO(5) group. It is found that there is a dominance of double-beta decay transition through a single state of the intermediate nucleus. Then, an energy-weighted sum rule connecting Delta Z = 2 nuclei is presented and discussed. It is suggested that this sum rule can be exploited to study the residual interactions of the nuclear Hamiltonian.