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：

WORKSHOP ON CALCULATION OF DOUBLE-BETA-DECAY MATRIX ELEMENTS (MEDEX '19) | 2019年 / 2165卷

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.

引用

页数：4

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