2 NEUTRINO DOUBLE-BETA DECAY OF MO-100 TO THE FIRST EXCITED O+ STATE IN RU-100

被引：113

作者：

BARABASH, AS

AVIGNONE, FT

COLLAR, JI

GUERARD, CK

ARTHUR, RJ

BRODZINSKI, RL

MILEY, HS

REEVES, JH

MEIER, JR

RUDDICK, K

UMATOV, VI

机构：

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

[2] PACIFIC NW LAB, RICHLAND, WA 99352 USA

[3] UNIV MINNESOTA, SCH PHYS & ASTRON, MINNEAPOLIS, MN 55455 USA

[4] PN LEBEDEV PHYS INST, MOSCOW 142092, RUSSIA

来源：

PHYSICS LETTERS B | 1995年 / 345卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(94)01657-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Double-beta decay of Mo-100 to the 0(+) excited state at 1130.29 keV in Ru-100 has been observed. A 956 g sample of molybdenum powder enriched to 98.468% Mo-100 was counted in a ''Marinelli'' geometry with a well-shielded, ultralow-background germanium detector. The cascade gamma rays at 539.53 and 590.76 keV in Ru-100 were observed. The resulting half-life is(6.1(-1.1)(+1.8)) X 10(20) yr at the 68% confidence limit in disagreement with a recently published limit.

引用

页码：408 / 413

页数：6

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