欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
近年来^178Hf^m2 31年的同核异能态被认为是用低能X射线触发使其释放储存能量的最合适候选者。为了探讨在^178Hf中是否存在触发K^π=16^＋同核异能态γ发射的门态,本工作首先用投影壳模型对^178Hf的多准粒子态和集体激发态进行了研究,结果表明其它态位于距离16^＋同核异能态较远的地方。但当用包括γ自由度的组态限制（绝热阻塞）方法计算^178Hf的多准粒子激发态时,结果显示有三个能级可能是16＋同核异能态光退激的候选者,位能面计算的结果显示^178Hf为轴对称硬核。
英文摘要：
Background： ^178Hf^m2 isomer is considered the most suitable candidate to study the depletion of its stored energy induced by low-energy X-ray in recent decades. Purpose： The aim is to research whether there exist potential gateway states which may trigger gamma-ray emission from the K^π=16^＋isomer with low-energy photons. Methods： The projected shell model is at first used to study the multi-quasiparticle and collective excitation states of ^178Hf. Results： The results show that the 16^＋ isomer lies well separated in energy from other states. But when the configuration-constrained （diabatic blocking） calculations, with inclusion of y-deformation, are performed to study the multi-quasiparticle excitation states of ^178Hf, it appears that three levels can be the most likely candidates for photodeexcitation of the 16^＋ isomer. Conclusion： The Potential Energy Surface （PES） calculations in the present work suggest that this nucleus is rigid to axially asymmetric shapes.
同期刊论文项目
同项目期刊论文
期刊信息
位置：