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
- Časopis / citaceJournal / citation
- Bulletin of the Russian Academy of Sciences:Physics. 2006, 70(2), 316-321. ISSN 1062-8738.
- RokYear
- 2006
- JazykLanguage
- eng
- ScopusScopus
- 2-s2.0-33847706948
- RIVRIV
- RIV/68407700:21670/06:00170838!RIV11-MSM-21670___
- ProjektProject
- Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld
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).