^(172)W核三轴超形变的探究

The Formation Mechanism of Triaxial Super-deformed Nucleus ^(172)W

运用二维总位能面计算方法计算了偶偶核^(172)W的总位能面,计算结果表明偶偶核^(172)W有明显的三轴超形变,形变参数为ε_2=0.38和γ=35°。分析计算过程发现对于偶偶核^(172)W的三轴超形变形成机理中,中子壳修正能量起到了关键作用,高j闯入轨道也起到了重要作用,转动能同样起到了一定的作用。

By using of the TRS theory, the authors calculate the total routhian surface for 172^W nucleus, the result of which indicates that the TSD state exists with deformation parameters ε2 = 0.38 and γ = 35°. The calculation results indicate that the shell correction energy of neutron plays a key role in the formation of TSD even-even nucleus 172^W, the high j intruder orbital plays a crucial role to form TSD shape, the rotational energy also has an additional role to form TSD shape.