束缚态β<SUP>-</SUP>衰变及其天体物理意义

束缚态β^-衰变及其天体物理意义

摘要: 束缚态β-衰变是一种特殊的弱相互作用衰变模式,对某些高电离态重原子的β-衰变有重要或决定性的贡献.从理论和实验两方面介绍了束缚态β-衰变研究的进展及其对恒星中的慢中子俘获过程和187Re 187Os宇宙核钟的影响.

Abstract: The boundstate β^- decay stands for a particular weak interaction decay mode, which has a significant or dominant contribution to the β^- decays of some highly ionized heavy atoms. The progress of the theoretical and experimental studies on this decay mode, and its importance to the sprocess synthesis of heavy elements as well as the ¹⁸⁷Re、¹⁸⁷Os cosmochronometer are presented.