2-NEUTRINO DOUBLE-BETA DECAY MEASUREMENT OF MO-100

被引：121

作者：

DASSIE, D

ESCHBACH, R

HUBERT, F

HUBERT, P

ISAAC, MC

IZAC, C

LECCIA, F

MENNRATH, P

VAREILLE, A

LONGUEMARE, C

MAUGER, F

DANEVICH, F

KOUTS, V

TRETYAK, VI

VASSILYEV, Y

ZDESENKO, Y

BARABASH, AS

KORNOUKOV, VN

LEPIKHIN, YB

UMATOV, VI

VANUSHIN, IA

AUGIER, C

BLUM, D

CAMPAGNE, JE

JULLIAN, S

LALANNE, D

LAPLANCHE, F

NATCHEZ, F

PICHENOT, G

SZKLARZ, G

ARNOLD, R

GUYONNET, JL

LAMHAMDI, T

LINCK, I

PIQUEMAL, F

SCHEIBLING, F

BRUDANIN, V

EGOROV, V

KOCHETOV, O

NOZDRIN, A

VYLOV, T

ZAPAROV, S

NICHOLSON, HW

SUTTON, CS

机构：

[1] UNIV BORDEAUX, F-33170 GRADIGNAN, FRANCE

[2] UNIV CAEN, F-14032 CAEN, FRANCE

[3] UKRAINIAN ACAD SCI, INST NUCL RES, KIEV 252028, UKRAINE

[4] INST THEORET & EXPTL PHYS, MOSCOW 117259, RUSSIA

[5] UNIV PARIS 11, F-91405 ORSAY, FRANCE

[6] UNIV STRASBOURG 1, F-67037 STRASBOURG, FRANCE

[7] JOINT INST NUCL RES, DUBNA, RUSSIA

[8] CTR RECH NUCL, CNRS, IN2P3, F-67037 STRASBOURG, FRANCE

[9] LAB PHYS CORPUSCLAIRE, CNRS, IN2P3, F-14032 CAEN, FRANCE

[10] LAB ACCELERATEUR LINEAIRE, CNRS, IN2P3, F-91405 ORSAY, FRANCE

[11] MT HOLYOKE COLL, S HADLEY, MA 01075 USA

来源：

PHYSICAL REVIEW D | 1995年 / 51卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.51.2090

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

From data accumulated over 6140 h with 172 g of enriched molybdenum (1.18 mol yr of Mo100) with the NEMO 2 detector in the Fréjus Underground Laboratory, a clear ββ2ν signal (1433 events) is observed, leading to a half-life T1/2=0.95±0.04(stat)±0.09(syst) 1019 yr. The experimental two-electron energy spectrum and the two-electron angular distribution are in agreement with the expected ones. Limits for ββ0ν decays to the ground state, excited states (21+ and 01+), and also with Majoron emission are given. © 1995 The American Physical Society.

引用

页码：2090 / 2100

页数：11

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