Nuclear Structure At High Spin

[9319934 . Saladin]对原子核在高角速度（即高自旋）下的行为提出了几个实验研究。这类研究的有趣之处在于，随着原子核角速度的增加，由于科里奥利和离心相互作用的影响，原子核的内部结构发生了变化。拟议的实验项目将在圣母大学的皮特阵列、FSU的皮特-FSU阵列和Gammasphere进行。在A=70 ~ 80区域，提出了对理论预测的超变形带的搜索。进一步提出研究A=70 ~ 90区的奇A核，特别是奇-奇核Br- 78。采用DSAM和柱塞法对Ac-219进行了寿命研究。提出了一系列的实验。它们是基于转换电子能谱的，它可以提供关于跃迁多极的重要信息。具体来说，我们建议研究Ce- 130中Pitt基团所观察到的“剩余”电子的起源。实验计划在A=130核的相邻核中，针对不同的靶弹组合进行。进一步提出了在轻汞和轻铅区发现的所谓m1波段的m1特征。

9319934 Saladin Several experimental investigations on the behavior of nuclei at high angular velocity (i.e. high spin) are proposed. The interest in such studies lies in the fact that, as the angular velocity of a nucleus is increased, its internal structure changes due to the influence of the coriolis and centrifugal interaction. The proposed experimental program will be carried out with the Pitt array at Notre Dame, the Pitt-FSU array at FSU and at Gammasphere. In the A=70 to 80 region a search for theoretically predicted superdeformed bands is proposed. It is furthermore proposed to study odd A nuclei in the A=70 to 90 region and in particular the odd-odd nucleus Br- 78. A series of lifetime studies on Ac-219 by means of DSAM and the plunger method are proposed. A series of experiments are proposed. which are based on conversion electron spectroscopy which can provide crucial information on the multipolarity of transitions. Specifically it is proposed to study the origin of "surplus" electrons that were observed by the Pitt group in Ce- 130. Experiments are planned in neighboring nuclei in the A=130 nuclei and for different target and projectile combinations. It is furthermore proposed to confirm the M1-character of the recently found so-called M1-bands in the light Hg and Pb region.