Recent results of the IGEX 76Ge double-beta decay experiment

被引：53

作者：

Aalseth, CE ^{[1
]}

Avignone, FT ^{[1
]}

Brodzinski, RL ^{[1
]}

Cebrian, S ^{[1
]}

Gonzáles, D ^{[1
]}

García, E ^{[1
]}

Hensley, WK ^{[1
]}

Irastorza, IG ^{[1
]}

Kirpichnikov, IV ^{[1
]}

Klimenko, AA ^{[1
]}

Miley, HS ^{[1
]}

Morales, A ^{[1
]}

Morales, J ^{[1
]}

de Solórzano, AR ^{[1
]}

Osetrov, SB ^{[1
]}

Pogosov, VS ^{[1
]}

Puimedón, J ^{[1
]}

Reeves, JH ^{[1
]}

Sarsa, ML ^{[1
]}

Scopel, S ^{[1
]}

Smolnikov, AA ^{[1
]}

Starostin, AS ^{[1
]}

Tamanyan, AG ^{[1
]}

Vasenko, AA ^{[1
]}

Vasiliev, SI ^{[1
]}

Villar, JA ^{[1
]}

机构：

[1] Univ S Carolina, Columbia, SC 29208 USA

来源：

PHYSICS OF ATOMIC NUCLEI | 2000年 / 63卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1134/1.855774

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 International Germanium Experiment (IGEX) has now analyzed 117 mol yr of data from its isotopically enriched (86% Ge-76) germanium detectors. Applying pulse shape discrimination (PSD) to the more recent data, the lower bound on the half-life for neutrinoless double-beta decay of Ge-76 is deduced: T-1/2(0v) > 1.57 x 10(25) yr (90% C.L.). This corresponds to an upper bound on the Majorana neutrino mass parameter, [m(v)], between 0.33 eV and 1.35 eV depending on the choice of theoretical nuclear matrix elements used in the analysis. (C) 2000 MAIK "Nauka/lnterperiodica".

引用

页码：1225 / 1228

页数：4