Abstract Potential energy is important ingredient in static and dynamical investigations of a nuclear fission process. The calculation of surface, nuclear, Coulomb, rotational, curvature, congruence, and Wigner energy functionals is presented for large variety of nuclear shapes generated by a { c , h , α } parametrization. Using these functionals one can calculate the potential energy in several macroscopic models of the liquid-drop type. A numerical code which calculates all these quantities is made available. Program summary Program Title: FRM_epot CPC Library link to program files: http://dx.doi.org/10.17632/h7r43t7dnh.1 Licensing provisions: CC BY NC 3.0 Programming language: C++ Nature of problem: The shape dependence of the surface, nuclear, Coulomb, rotational, curvature, congruence, and Wigner energy functionals together with the moments of inertia for rotation, center-of-mass distance between nascent fragments are calculated for deformed shapes of the fissioning compound nucleus. These functionals allow to calculate the potential energy in several macroscopic models of the liquid-drop type for a large variety of nuclear shapes. Solution method: The shape of the fissioning nucleus is described by the { c , h , α } parametrization. This parametrization determines the axially symmetric shapes in cylindrical coordinates. The potential energy functionals are calculated using numerical integration procedure as a function of the three shape parameters. Using these functionals one can generate potential energy of the nucleus in four different versions of the liquid-drop model. All subroutines, which define the nuclear shape are separated from the code, which calculates the potential energy functionals. Thus, the program could be easily adopted for any other shape parametrization in case if it is given in cylindrical coordinates.

中文翻译：

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激发复合核的势能模型

摘要 势能是核裂变过程静态和动态研究的重要组成部分。表面、核、库仑、旋转、曲率、同余和 Wigner 能量泛函的计算是针对由 { c , h , α } 参数化生成的多种核形状提出的。使用这些泛函可以计算几种液滴类型的宏观模型中的势能。提供计算所有这些数量的数字代码。程序概要 程序名称：FRM_epot CPC 库程序文件链接：http://dx.doi.org/10.17632/h7r43t7dnh.1 许可条款：CC BY NC 3.0 编程语言：C++ 问题性质：曲面的形状依赖性，核，库仑，旋转，曲率，同余，和 Wigner 能量泛函连同转动惯量，计算裂变复合核变形形状的新生碎片之间的质心距离。这些泛函允许计算多种核形状的液滴型宏观模型中的势能。求解方法：裂变核的形状由 { c , h , α } 参数化描述。这种参数化确定了圆柱坐标中的轴对称形状。作为三个形状参数的函数，使用数值积分程序计算势能函数。使用这些泛函可以在四种不同版本的液滴模型中产生原子核的势能。所有子程序，定义核形状的代码与计算势能函数的代码分开。因此，如果在圆柱坐标中给出，该程序可以很容易地用于任何其他形状参数化。