SUGGESTIVE EVIDENCE FOR THE 2-NEUTRINO DOUBLE-BETA DECAY OF GE-76

被引：95

作者：

MILEY, HS ^{[1
]}

AVIGNONE, FT ^{[1
]}

BRODZINSKI, RL ^{[1
]}

COLLAR, JI ^{[1
]}

REEVES, JH ^{[1
]}

机构：

[1] UNIV S CAROLINA, DEPT PHYS & ASTRON, COLUMBIA, SC 29208 USA

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.65.3092

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A dramatic reduction in background was achieved in the latest Pacific Northwest Laboratory University of South Carolina germanium detectors. Two 1.05-kg natural-isotopic-abundance detectors were operated for 1.92 kg yr. The residual spectrum, after straightforward corrections, has a significant region resembling the theoretical spectrum of the two-neutrino decay of Ge76. A fit to the data yields T1/22(76Ge)=(1.1-0.3+0.6)×1021 yr at the 95% C.L., which agrees with shell-model predictions. © 1990 The American Physical Society.

引用

页码：3092 / 3095

页数：4

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