α activity of natural tungsten isotopes -: art. no. 014310

被引：102

作者：

Danevich, FA

Georgadze, AS

Kobychev, VV

Nagorny, SS

Nikolaiko, AS

Ponkratenko, OA

Tretyak, VI

Zdesenko, SY

Zdesenko, YG

Bizzeti, PG

Fazzini, TF

Maurenzig, PR

机构：

[1] Ukrainian Acad Sci, Inst Nucl Res, UA-03680 Kiev, Ukraine

[2] Univ Florence, Dipartimento Fis, I-50019 Florence, Italy

[3] Ist Nazl Fis Nucl, I-50019 Florence, Italy

来源：

PHYSICAL REVIEW C | 2003年 / 67卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.67.014310

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 indication for the alpha decay of W-180 with a half-life T-1/2(alpha)=1.1(-0.4)(+0.8)(stat)+/-0.3(syst)x10(18) yr has been observed for the first time with the help of the superlow background (CdWO4)-Cd-116 crystal scintillators. In a conservative approach the lower limit on half-life of W-180 has been established as T-1/2(alpha)(W-180)greater than or equal to0.7x10(18) yr at 90% C.L. In addition, new T-1/2(alpha) bounds were set for alpha decay of W-182, W-183, W-184, and W-186 at the level of 10(20) yr.

引用

页码：143101 / 143108

页数：8

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