HALF-LIFE FOR ALPHA-DECAY OF SM-147

被引：7

作者：

MARTINS, JB

TERRANOVA, ML

CORREA, MM

机构：

[1] UERJ, INST FIS, BR-20550 RIO DE JANEIRO, BRAZIL

[2] UNIV ROMA TOR VERGATA, DIPARTIMENTO SCI & TECNOL CHIM, I-00173 ROME, ITALY

[3] INFN, ROME, ITALY

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1992年 / 105卷 / 11期

关键词：

ALPHA-DECAY;

D O I：

10.1007/BF02731075

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：

The alpha-decay of 247Sm has been investigated in the Gran Sasso Underground Laboratory by using plates of CR-39 as detector in close contact with thin layers of natural samarium. The half-life of the decay process, measured for the first time under conditions free from cosmic-ray neutrons, is found to be T1/2 = = (1.23 +/- 0.04) . 10(11) y. The present result is compared with the half-life values reported in the literature and interpreted on the basis of a simple formalism for alpha-decay developed in the framework of penetration through a Coulomb-plus-centrifugal potential barrier.

引用

页码：1621 / 1627

页数：7

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