超形变带衰变能垒的确定
Determining the Energy Barrier for Decay out of Superdeformed Bands
摘要：
一个渐近精确的量子力学计算的矩阵元素隧穿通过一个不对称的障碍相结合的两个状态的统计模型衰变出超变形带，以确定分离的几个核在190和150质量区的超变形和正常变形的井的能垒（作为自旋的函数）。的自旋依赖性的障碍，导致突然衰减示出的是一致的，随着角动量的减少，离心障碍的减少。预测了两个质量区的势垒频率值。
英文摘要：
An asymptotically exact quantum mechanical calculation of the matrix elements for tunneling through an asymmetric barrier is combined with the two-state statistical model for decay out of superdeformed bands to determine the energy barrier (as a function of spin) separating the superdeformed and normal-deformed wells for several nuclei in the 190 and 150 mass regions. The spin-dependence of the barrier leading to sudden decay out is shown to be consistent with the decrease of a centrifugal barrier with decreasing angular momentum. Values of the barrier frequency in the two mass regions are predicted.
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