具有真实交互的动态与静态fission路径
Dynamic versus static fission paths with realistic interactions
摘要：
动态（最少的行动）裂变路径的属性进行了分析和比较，更传统的静态（最少的能量）的路径。BCPM和Gogny D1M能量密度泛函都用于计算HFB约束构型，提供势能和集体惯性。动作的计算方法与WKB方法相同。在HFB波函数的完整变分空间上的最小作用路径的完全变分搜索是麻烦的，并且如果确定了相关的自由度，则可能是不必要的。在本文中，我们考虑的粒子数波动自由度，探讨的数量配对相关的波函数。对于一个给定的形状，最小作用量可以比相同形状的最小能态计算出的作用量小三倍。这种减少对寿命的影响是巨大的，并显着提高了与实验数据的一致性，在考虑的几个例子。
英文摘要：
The properties of dynamic (least action) fission paths are analyzed and compared to the ones of the more traditional static (least energy) paths. Both the BCPM and Gogny D1M energy density functionals are used in the calculation of the HFB constrained configurations providing the potential energy and collective inertias. The action is computed as in the WKB method. A full variational search of the least-action path over the complete variational space of HFB wave functions is cumbersome and probably unnecessary if the relevant degrees of freedom are identified. In this paper, we consider the particle number fluctuation degree of freedom that explores the amount of pairing correlations in the wave function. For a given shape, the minimum action can be up a factor of three smaller than the action computed for the minimum energy state with the same shape. The impact of this reduction on the lifetimes is enormous and dramatically improves the agreement with experimental data in the few examples considered.
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