Search for double electron capture of 106Cd in TGV-2 experiment
- NázevTitle
- Search for double electron capture of 106Cd in TGV-2 experimentSearch for double electron capture of 106Cd in TGV-2 experiment
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- V.B Brudanin, N.I. Rukhadze, V.G. Egorov, Ch. Briancon, P. Beneš, T. Vylov, K.N. Gusev, F.A. Danevich, A.A. Klimenko, V.E. Kovalenko, A. Kovalík, A.V. Salamatin, V.V. Timkin, V.I. Tretyak, P. Čermák, I. Štekl
- Klíčová slovaKeywords
- electron capture, cadmium
- Časopis / citaceJournal / citation
- Bulletin of the Russian Academy of Sciences: Physics 70(2), 316-321 (2006) · ISSN 1062-8738
- RokYear
- 2006
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
An experiment on the search for double electron capture in the decay of 106Cd is under way at the Modane underground laboratory (4800m w.e.). Thin (~50 μm) samples of enriched 106Cd and natural Cd are being investigated at the TGV-2 low-background many-detector spectrometer. Preliminary processing of the data gathered for 3400 h of measurements with 10g of enriched 106Cd (enrichment 75%) allowed new limitations (at the 90% confidence level) to be imposed on different 106Cd decay branches to the ground (0+) and the first excited (2+, 512keV) states of the daughter nucleus. They are T1/2(2vβ+EC) ≥ 4.1·1019 yr and T1/2(2vEC/EC) ≥ 5.6·1019 yr (for transitions 0+ -> 0+, g.s.) and T1/2(2vβ +EC) ≥ 5.8·1019 yr and T1/2(2vEC/EC) ≥ 2.1·1019 yr (for transition to the 2+ excited state).
An experiment on the search for double electron capture in the decay of 106Cd is under way at the Modane underground laboratory (4800m w.e.). Thin (~50 μm) samples of enriched 106Cd and natural Cd are being investigated at the TGV-2 low-background many-detector spectrometer. Preliminary processing of the data gathered for 3400 h of measurements with 10g of enriched 106Cd (enrichment 75%) allowed new limitations (at the 90% confidence level) to be imposed on different 106Cd decay branches to the ground (0+) and the first excited (2+, 512keV) states of the daughter nucleus. They are T1/2(2vβ+EC) ≥ 4.1·1019 yr and T1/2(2vEC/EC) ≥ 5.6·1019 yr (for transitions 0+ -> 0+, g.s.) and T1/2(2vβ +EC) ≥ 5.8·1019 yr and T1/2(2vEC/EC) ≥ 2.1·1019 yr (for transition to the 2+ excited state).