Improved limits on beta+EC and ECEC processes in Se-74
- NázevTitle
- Improved limits on beta+EC and ECEC processes in Se-74Improved limits on beta+EC and ECEC processes in Se-74
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- A. Barabash, V. Brudanin, A. Klimenko, E. Rukhadze, I. Štekl
- Klíčová slovaKeywords
- double beta decay, double electron capture, Low background HPGe detector
- DOIDOI
- 10.1016/j.nuclphysa.2020.121697
- Časopis / citaceJournal / citation
- Nuclear Physics A 996, 121697 (2020) · ISSN 0375-9474
- RokYear
- 2020
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Inženýrské aplikace fyziky mikrosvětaEngineering applications of microworld physics
- CitovánoCited by
- 6 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://arxiv.org/pdf/2001.07069
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
New limits on β+EC and ECEC processes in 74Se have been obtained using a 600 cm3 HPGe detector and an external source consisting of 1600 g of a natural selenium powder. For different β+EC and ECEC transitions (to the ground and excited states) obtained limits are on the level ∼(0.2−4.8)×1019 yr at 90\% C.L. In particular, for the potentially resonant transition into the 1204.2 keV excited state of 74Ge a lower half-life limit of 1.1×1019 yr at 90\% C.L. has been obtained. Possibility to increase the sensitivity of such measurements is discussed.
New limits on β+EC and ECEC processes in 74Se have been obtained using a 600 cm3 HPGe detector and an external source consisting of 1600 g of a natural selenium powder. For different β+EC and ECEC transitions (to the ground and excited states) obtained limits are on the level ∼(0.2−4.8)×1019 yr at 90\% C.L. In particular, for the potentially resonant transition into the 1204.2 keV excited state of 74Ge a lower half-life limit of 1.1×1019 yr at 90\% C.L. has been obtained. Possibility to increase the sensitivity of such measurements is discussed.