ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

New search for 0vEC/EC and 2vEC/EC decay of 106Cd

NázevTitle
New search for 0vEC/EC and 2vEC/EC decay of 106CdNew search for 0vEC/EC and 2vEC/EC decay of 106Cd
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
N.I. Rukhadze, A.M. Bakalyarov, Ch. Briancon, V.B. Brudanin, T. Vylov, V.G. Egorov, S.V. Zhukov, D.R. Zinatulina, A.A. Klimenko, A. Kovalík, V.I. Lebedev, V.V. Timkin, P. Čermák, Yu.A. Shitov, I. Štekl
Klíčová slovaKeywords
double beta decay, cadmium
DOIDOI
10.3103/S1062873809060112
Časopis / citaceJournal / citation
Bulletin of the Russian Academy of Sciences: Physics 73(6), 741-744 (2009) · ISSN 1062-8738
RokYear
2009
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Posílení přímé účasti v neurychlovačové astročásticové fyziky prováděné v mezinárodních podzemních laboratoříchEnhancement of Direct Participation in Non-Accelerator Astroparticle Physics Performed in International Underground Laboratories; Centrum experimentální jaderné astrofyziky a jaderné fyzikyCenter of Experimental Nuclear Astrophysics and Nuclear Physics; Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld
CitovánoCited by
3 (OpenAlex)
2010: 22011: 1
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

The studies aimed at decreasing the background of the TGV-2 spectrometer have led to constructive changes in the cryostat and increased the sensitivity of the 32-detector spectrometer. New search for 0vEC/EC, 2vEC/EC) decays of 106Cd was started with ~13.6 g of 106Cd with enrichment of 75%. The evaluation of the experimental data accumulated for 4800 h was performed. Limits (at 90% CL) on the half-lives of 0vEC/EC resonant decay of 106Cd to the 2741 keV excited state of 106Pd (T1/2 ≥ 6.5 × 1019 y) and on t 2vEC/EC decay to the ground state of 106Pd (0+ -> 0+, g.s.) (T1/2 ≥ 1.7 × 1020 y) were obtained. The limits on the other branches of 106Cd decay-2vEC/EC decay to the 2+, 512 keV and 01+, 1334 keV excited states of 106Pd and 2vβ+ β+ and 2vβ+EC decays of 106Cd to the ground and excited states of 106Pd were improved.

The studies aimed at decreasing the background of the TGV-2 spectrometer have led to constructive changes in the cryostat and increased the sensitivity of the 32-detector spectrometer. New search for 0vEC/EC, 2vEC/EC) decays of 106Cd was started with ~13.6 g of 106Cd with enrichment of 75%. The evaluation of the experimental data accumulated for 4800 h was performed. Limits (at 90% CL) on the half-lives of 0vEC/EC resonant decay of 106Cd to the 2741 keV excited state of 106Pd (T1/2 ≥ 6.5 × 1019 y) and on t 2vEC/EC decay to the ground state of 106Pd (0+ -> 0+, g.s.) (T1/2 ≥ 1.7 × 1020 y) were obtained. The limits on the other branches of 106Cd decay-2vEC/EC decay to the 2+, 512 keV and 01+, 1334 keV excited states of 106Pd and 2vβ+ β+ and 2vβ+EC decays of 106Cd to the ground and excited states of 106Pd were improved.

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