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Investigation of β+EC, EC/EC Processes in 74Se
被引：0
|作者：
Rukhadze, N., I
[1
]
Barabash, A. S.
[2
]
Brudanin, V. B.
[1
,3
]
Klimenko, A. A.
[1
,4
]
Konovalov, S., I
[2
]
Rakhimov, A., V
[1
]
Rukhadze, E. N.
[5
]
Shitov, Yu A.
[1
]
Stekl, I
[5
]
Umatov, V., I
[2
]
Warot, G.
[6
]
机构：
[1] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia
[2] Kurchatov Inst, Inst Theoret & Expt Phys, Natl Res Ctr, Moscow 117218, Russia
[3] MEPhI, Moscow 115409, Russia
[4] Dubna Int Univ, Dubna 141980, Russia
[5] Czech Tech Univ, Inst Expt & Appl Phys, Prague 11000, Czech Republic
[6] Lab Souterrain Modane, F-73500 Modane, France
来源：
关键词：
DECAY;
D O I：
10.1063/1.5130982
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Investigation of double beta decay processes (beta+EC, EC/EC) of Se-74 was performed at the Modane underground laboratory (LSM, France, 4800 m w.e.) using ultra low-background HPGe detector Obelix with sensitive volume of 600 cm(3) and a sample of natural selenium with a mass of 1.6 kg, containing similar to 0.89% (similar to 14.24 g) of Se-74. New experimental limits (at 90 % CL) on double beta decay transitions of Se-74 to the ground and exited states of Ge-74 were obtained from the preliminary calculation of experimental data accumulated in 135 days.
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