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原子核形状共存问题的研究 被引量:1
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作者 孙杰 刘艳鑫 《湖州师范学院学报》 2008年第2期36-37,共2页
采用基于形变Woods-Saxon势下的推转壳模型理论和处理对力的Lipkin-Nogami(LN)方法,研究了187Tl的形状共存问题.在自洽条件下,通过求解推转的LN方程得到了原子核总的位能面(TRS)图,证实了在187Tl核中的形状共存现象,得到了与实验一致的... 采用基于形变Woods-Saxon势下的推转壳模型理论和处理对力的Lipkin-Nogami(LN)方法,研究了187Tl的形状共存问题.在自洽条件下,通过求解推转的LN方程得到了原子核总的位能面(TRS)图,证实了在187Tl核中的形状共存现象,得到了与实验一致的结果. 展开更多
关键词 形状共存 推转壳模型 Woods—Saxon势 lipkin—nogami方法
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Investigation of octupole effects in superheavy nuclei with improved potential-energy-surface calculations 被引量:9
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作者 WANG HuaLei LIU HongLiang +1 位作者 XU FuRong JIAO ChangFeng 《Chinese Science Bulletin》 SCIE CAS 2012年第15期1761-1764,共4页
It has been found that high-order deformation (e.g.β6) can have important effects on the structures of superheavy nuclei. In the present work, we investigate octupole deformation effects on superheavy nuclei with an ... It has been found that high-order deformation (e.g.β6) can have important effects on the structures of superheavy nuclei. In the present work, we investigate octupole deformation effects on superheavy nuclei with an improved potential-energy-surface (PES) calculation by including reflection-asymmetric deformations in a space of (β2 ,β3 ,β4 , β5). The calculations give various deformations including highly deformed (β2 ≈ 0.4) and superdeformed (β2 ≈ 0.7) shapes. The octupole-deformation degree of freedom mainly affects the fission barrier beyond the second minimum of PES. 展开更多
关键词 超重核 势能面 计算 对称变形 八极形变 变形程度 PES 超形变
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