Search for 2β decay of cadmium and tungsten isotopes:: Final results of the Solotvina experiment -: art. no. 035501

被引：165

作者：

Danevich, FA

Georgadze, AS

Kobychev, VV

Kropivyansky, BN

Nikolaiko, AS

Ponkratenko, OA

Tretyak, VI

Zdesenko, SY

Zdesenko, YG ^{[1
]}

Bizzeti, PG

Fazzini, TF

Maurenzig, PR

机构：

[1] Inst Nucl Res, MSP-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 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.68.035501

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：

Final results of the double beta decay experiment, performed with the help of low background (CdWO4)-Cd-116 crystal scintillators in the Solotvina Underground Laboratory, are presented. In particular, the revised half-life value of the two-neutrino 2beta decay of Cd-116 has been measured as T-1/2(2nu)=2.9(-0.3)(+0.4)x10(19) yr, and the new half-life limit on the neutrinoless 2beta decay of Cd-116 has been established as T(1/2)(0nu)greater than or equal to1.7(2.6)x10(23) yr at 90% (68%) C.L. The latter corresponds to a restriction on the neutrino mass: m(nu)less than or equal to1.7(1.4) eV at 90% (68%) C.L. Besides, new T-1/2 bounds (at the level of 10(17)-10(21) yr) were set for various 2beta processes in Cd-106, Cd-108, Cd-114, W-180, and W-186 nuclei.

引用

页码：355011 / 3550112

页数：12

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