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
- DOIDOI
- 10.1016/j.nuclphysa.2020.121697
- Časopis / citaceJournal / citation
- Nuclear Physics A. 2020, 996(121697), ISSN 0375-9474.
- RokYear
- 2020
- JazykLanguage
- eng
- WoSWoS
- 000519669400017
- ScopusScopus
- 2-s2.0-85078257219
- RIVRIV
- RIV/68407700:21670/20:00337827!RIV21-MSM-21670___
- ProjektProject
- Inženýrské aplikace fyziky mikrosvětaEngineering applications of microworld physics
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.