Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

Searching for the β+EC and EC/EC Decays of 74Se

NázevTitle
Searching for the β+EC and EC/EC Decays of 74SeSearching for the β+EC and EC/EC Decays of 74Se
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
N. Rukhadze, A. Barabash, V. Brudanin, A. Klimenko, S. Konovalov, A. Rakhimov, E. Rukhadze, Y. Shitov, I. Štekl, V. Umatov, G. Warot
DOIDOI
10.3103/S1062873820080250
Časopis / citaceJournal / citation
Bulletin of the Russian Academy of Sciences:Physics. 2020, 84(8), 974-978. ISSN 1062-8738.
RokYear
2020
JazykLanguage
eng
ScopusScopus
2-s2.0-85091202245
RIVRIV
RIV/68407700:21670/20:00346601!RIV21-MSM-21670___
ProjektProject
Inženýrské aplikace fyziky mikrosvětaEngineering applications of microworld physics; Podzemní laboratoř LSM - účast České republikyLaboratoire Souterrain de Modane – participation of the Czech Republic

AbstraktAbstract

Double beta decay (β+EC, EC/EC) of 74Se was investigated at the Modane underground laboratory (LSM, France; 4800 m of water equivalent) using the OBELIX ultralow-background HPGe detector with a sensitive volume of 600 cm^3 and a sample of natural selenium with a mass of 1.6 kg containing ~0.89% (~14.24 g) of 74Se. The new experimental limits for β+EC and EC/EC decays of 74Se to ground 0^(+) and excited 2_(1)^(+), 596 keV, and 2_(2) ^(+) 1204 keV states of 74Ge, were obtained from experimental data accumulated over 135 days.

Double beta decay (β+EC, EC/EC) of 74Se was investigated at the Modane underground laboratory (LSM, France; 4800 m of water equivalent) using the OBELIX ultralow-background HPGe detector with a sensitive volume of 600 cm^3 and a sample of natural selenium with a mass of 1.6 kg containing ~0.89% (~14.24 g) of 74Se. The new experimental limits for β+EC and EC/EC decays of 74Se to ground 0^(+) and excited 2_(1)^(+), 596 keV, and 2_(2) ^(+) 1204 keV states of 74Ge, were obtained from experimental data accumulated over 135 days.