【摘 要】
：
对Ga同位素链的研究发现,~(65,67)Ga具有典型的单粒子激发结构和三轴形变性质,而~(73,75,77)Ga则观察到了很强的集体转动结构和对称转子形变现象,~(71)Ga正好处于形变过渡的
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对Ga同位素链的研究发现,~(65,67)Ga具有典型的单粒子激发结构和三轴形变性质,而~(73,75,77)Ga则观察到了很强的集体转动结构和对称转子形变现象,~(71)Ga正好处于形变过渡的核区。为更充分研究过渡核的特性以及在形变演化过程中的作用,本工作开展了对~(71)Ga核高自旋态结构的研究工作。在HI-13串列加速器上,利用熔合蒸发反应~(70)Zn(~7Li,2n2p)~(71)Ga布居了~(71)Ga的高自旋态。实验共收集了2×10~8个二重符合事件,新增加了
The study of Ga isotope chains shows that ~ (65,67) Ga has the typical single-particle excitation and triaxial deformation properties, while ~ (73,75,77) Ga shows a strong collective rotational structure and a symmetrical rotor Deformation phenomenon, ~ (71) Ga is just in the nuclear transition zone. In order to fully study the characteristics of transitional nuclei and their roles in deformation and evolution, this work carried out the research on the high-spin structure of ~ (71) Ga nuclei. In the HI-13 tandem accelerator, the high-spin state of ~ (71) Ga is populated by the fusion evaporation reaction of ~ (70) Zn (~ 7Li, 2n2p) ~ (71) Ga. A total of 2 × 10 ~ 8 double coincidence events were collected in the experiment
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