Study of Triaxial Superdeformation in ^162Lu

The triaxially superdeformed states in 162Lu are investigated using the three-dimensional total routhian surface calculation, and the deformation parameters and the likely configuration are given. The shell and pairing correction energies are considered respectively, and the formation mechanism of triaxial superdeformation is investigated.

奇奇核￣(162)Lu晕转带及四准粒子带的能级结构

通过在束谱学实验方法建立了￣（１６２）Ｌｕ的晕转带及四准粒子带的能级纲图。依据推转壳模型指出，正γ变也会导致Ｚ＝７１奇奇核￣（１６２）Ｌｕ的晕转带发生低自旋ｓｉｇｎａｔｕｒｅ反转。

^(162)Lu的高自旋态及A=160区双奇核晕态能级的符号因子反转

利用１４７￣Ｓｍ（１９￣Ｆ，４ｎγ）１６２￣Ｌｕ反应研究了１６２￣Ｌｕ的高自旋态。由７个带ＢＧＯ康普顿抑制的高纯锗探测器和一个小平面探测器进行了在束γ测量，首次建立了双奇核１６２￣Ｌｕ转晕带的能级纲图。发现在低转动频率下，１６２￣Ｌｕ的转晕带能级发生符号因子反转。对质量数Ａ＝１６０核区双音核的转晕带重新进行了分析和考察，讨论了转晕带能级符号因子反转的系统性。