Looking for double beta decay of 150Nd to excited states of 150Sm by gamma ray spectroscopy

被引：15

作者：

Arpesella, C

Bellotti, E

Ferrari, N

Zanotti, L

机构：

[1] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Laquila, Italy

[2] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[3] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1999年 / 70卷

关键词：

D O I：

10.1016/S0920-5632(98)00430-7

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We have measured the gamma ray activity of a sample of 6189 grams of metallic Neodimium with a germanium detector. From the gamma energy spectrum recorded during almost 6500 hours we extract lower limits for the halflife of the inclusive (0 nu+2 nu) beta beta decay of Nd-150 to the first excited states of Sm-150 : t(1/2)(0(+) --> 0(1)(+)) > 1.0.10(20), t(1/2)(0(+) --> 0(2)(+))> 2.0.10(20), t(1/2)(0(+) --> 2(1)(+)) > 9.1.10(19).

引用

页码：249 / 251

页数：3