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Double electron capture of 106Cd in the TGV-2 experiment

N.I. Rukhadze Ch. Briancon 1 V.B. Brudanin G.V. Egorov L. Fajt R. Hodak A.A. Klimenko A. Kovalik P. Kouba F. Piquemal 2 S.V. Rozov E. Rukhadze F. Rychnovsky A.V. Salamatin F. Simkovic Yu.A. Shitov I. Stekl V.V. Timkin E.A. Yakushev
1 CSNSM SNO
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière : UMR8609
2 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
Abstract : A new experimental run of searching for EC/EC decay of Cd-106 was performed at the Modane underground laboratory (4800 m w.e.) using the TGV-2 spectrometer and similar to 23.2 g Cd-106 with enrichment of 99.57%. The limit on 2 nu EC/EC decay of Cd-106 -T-1/2(2 nu EC/EC) > 3.1x10(20) y, at 90% C. L was obtained from the preliminary calculation of experimental data accumulated for 7018 h of measurement. The limits on the resonance neutrino-less double electron capture decay of Cd-106 were obtained from the measurement of similar to 23.2 g of Cd-106 with the low-background HPGe spectrometer OBELIX lasted 395 h -T-1/2(KL, 2741 keV) > 0.9x10(20) y and T-1/2(KK, 2718 keV) > 1.4x10(20) y at 90% C.L.
Keywords : double beta decay neutrino
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http://hal.in2p3.fr/in2p3-01297919
Contributor : Emilie Bonnardel <>
Submitted on : Tuesday, April 5, 2016 - 10:39:14 AM
Last modification on : Friday, March 15, 2019 - 2:28:06 PM

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IN2P3 | CENBG | CSNSM | CNRS | UNIV-PARIS-SACLAY

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N.I. Rukhadze, Ch. Briancon, V.B. Brudanin, G.V. Egorov, L. Fajt, et al.. Double electron capture of 106Cd in the TGV-2 experiment. WORKSHOP ON CALCULATION OF DOUBLE-BETA-DECAY MATRIX ELEMENTS (MEDEX15), Jun 2015, PRAGUE, Czech Republic. pp.020020, ⟨10.1063/1.4934909⟩. ⟨in2p3-01297919⟩

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