摘要
分析了143Dy和141Dy的β缓发质子衰变的数据,对比计算了这两种核的核位能面。从中看到了143Dy的衰变包括有1/2+基态和11/2-同核异能态的两种衰变成分,并且确定了它们的半衰期分别为(6.0±1.5)s和(3.0±0.5)s。同时也测定了141Dy的半衰期为(0.9±0.2)s,并指认了它的自旋宇称为9/2-。
The experimental data for the β-delayed proton decays of ^143Dy and ^141Dy have been analyzed and the nuclear potential energy surfaces for the two nuclei have been calculated. It has been found that the decay of ^143Dy consists of two components, i. e. the decays from 1/2^＋ ground state and 1 1/2^- isomeric state with the halflives of （6.0±1.5） s and （3.0±0.5） s, respectively. In addition, the half-life of ^141Dy has been measured to be （0.9±0.2） s, and its spin and parity have been assigned as 9/2-.
出处
《科学技术与工程》
2006年第14期2012-2015,共4页
Science Technology and Engineering
基金
国家自然科学基金(10375078
10475002)资助
