Double-β decay of 82Se

被引：90

作者：

Arnold, R

Augier, C

Baker, J

Barabash, A

Blum, D

Brudanin, V

Caffrey, AJ

Campagne, JE

Caurier, E

Dassie, D

Egorov, V

Eschbach, R

Filipova, T

Gurriaran, R

Guyonnet, JL

Hubert, F

Hubert, P

Jullian, S

Kisel, I

Kochetov, O

Kornoukhov, VN

Kovalenko, V

Lalanne, D

Laplanche, F ^{[1
]}

Leccia, F

Linck, I

Longuemare, C

Marquet, C

Mauger, F

Mennrath, P

Nicholson, HW

Pilugin, I

Piquemal, F

Purtov, O

Reyss, JL

Sarazin, X

Scheibling, F

Suhonen, J

Sutton, CS

Szklarz, G

Timkin, V

Torres, R

Tretyak, VI

Umatov, V

Vanyushin, I

Vareille, A

Vasilyev, Y

Vylov, T

Zerkin, V

机构：

[1] CNRS, IN2P3, CENBG, F-33170 Gradignan, France

[2] Univ Bordeaux, F-33170 Gradignan, France

[3] Univ Caen, F-14032 Caen, France

[4] CNRS, IN2P3, LPC, F-14032 Caen, France

[5] Joint Inst Nucl Res, Dubna 141980, Russia

[6] CNRS, CFR, F-91190 Gif Sur Yvette, France

[7] INEL, Idaho Falls, ID 83415 USA

[8] Univ Jyvaskyla, Jyvaskyla 40351, Finland

[9] ITEP, UA-252028 Kiev, Ukraine

[10] Univ Paris Sud, F-91405 Orsay, France

[11] CNRS, IN2P3, LAL, F-91405 Orsay, France

[12] MHC, S Hadley, MA 01075 USA

[13] Univ Strasbourg 1, F-67037 Strasbourg, France

[14] CNRS, IN2P3, IReS, F-67037 Strasbourg, France

来源：

NUCLEAR PHYSICS A | 1998年 / 636卷 / 02期

关键词：

RADIOACTIVITY Se-82(2 beta); measured 2 nu associated 2 beta decay T-1/2; O nu associated 2 beta decay T-1/2 lower limits;

D O I：

10.1016/S0375-9474(98)00208-5

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The NEMO-2 tracking detector located in the Frejus Underground Laboratory was designed as a prototype of the NEMO-3 detector to study neutrinoless (Ov) and two neutrino (2v) double-beta decay (PP) physics. After 10357 h of running with an isotopically enriched selenium source (2.17 mol yr of Se-82) a beta beta 2v decay half-life of T-1/2 = (0.83 +/- 0.10 (stat) +/- 0.07 (syst)) x 10(20) yr was measured. Limits with a 90% C.L. on the Se-82 half-lives of 9.5 x 10(21) yr for beta beta Ov decay to the ground state, 2.8 x 10(21) yr to the (2(+)) excited state and 2.4 x 10(21) yr for beta beta Ov chi(0) decay with a Majoron (chi(0)) were also obtained. (C) 1998 Elsevier Science B.V.

引用

页码：209 / 223

页数：15

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