Three-laboratory measurement of the 44Ti half-life

被引：66

作者：

Ahmad, I ^{[1
]}

Bonino, G

Castagnoli, GC

Fischer, SM

Kutschera, W

Paul, M

机构：

[1] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

[2] CNR, Ist Cosmogeofis, I-10133 Turin, Italy

[3] Univ Turin, Dipartimento Fis Gen, I-10125 Turin, Italy

[4] Univ Vienna, Inst Radiumforsch & Kernphys, A-1090 Vienna, Austria

[5] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.80.2550

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on a measurement of the Ti-44 half-life aimed at lowering existing systematic uncertainties in this value, which is important to astrophysics. The half-life was measured by following the decay of Ti-44 relative to Co-60 for about 5 yr and the measurements were performed independently in three laboratories - Argonne, Jerusalem, and Torino. We suggest to combine our result, 59.0 +/- 0.6 yr, with the one from the accompanying Letter by Gorres et al., 50.3 +/- 1.3 yr, to obtain a current "best value" for the half-life of Ti-44 of 59.2 +/- 0.6 yr (1 sigma error).

引用

页码：2550 / 2553

页数：4

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