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Briancon, C.; Brudanin, V B.; Egorov, V G.; Jose, J M.; Klimenko, a A.; Kovalik, A.; Rosov, S V.; Rukhadze, E N.; Rukhadze, N I.; Salamatin, a V.; Timkin, V V.; Fajt, L.; Hodak, R.; Simkovic, F.; Shitov, y A.; Spavorova, M.; Stekl, I.; Yakushev, E A.
Physics of atomic nuclei, 09/2015, Letnik: 78, Številka: issue 6Journal Article
A new experiment devoted to searches for double electron capture in Cd-106 decay is being performed at the Modane underground laboratory (4800 mwe) with the 32-detector TGV-2 spectrometer. The limit T (1/2)(2 nu EC/EC) > 2.0x10(20) yr at a 90%confidence level (C.L.) was obtained from a preliminary analysis of data obtained over 2250 h of measurements with about 23.2 g sample enriched in the isotope Cd-106 to 99.57%. The limits T (1/2)(KL, 2741 keV) > 0.9 x 10(20) yr and T (1/2)(KK, 2718 keV) a parts per thousand << 1.4 x 10(20) yr at a 90% C.L. on the neutrinoless decay of Cd-106 were obtained from measurements performed with the Obelix low-background spectrometer from high-purity germanium (HPGe spectrometer) for a sample of mass about 23.2 g enriched in the isotope Cd-106.
