multidimensional integral meaning in English

多维积分

In order to make the theoretical calculation feasible , we first obtain an analytical formalism of partial integrals with respect to the coordinates of the core and target in the phase - shift functions and their cross terms of scattering matrix elements , if the density distributions of the core and target are fitted to a few gaussian forms . then the rest multidimensional integrals with respect to the impact parameter and coordinates of halo nucleons are performed by a monte carlo method
为使理论计算变得可行，我们在核芯和靶核密度采用多个高斯分布拟合的情况下，解析求解了各个散射矩阵元中的光学相移函数及交叉项含有的与晕核核芯、靶核密度分布有关的积分;同时对与碰撞参数和晕核子坐标有关的积分(八重以上，并且积分维数随晕核子数很快增加)采用蒙特卡洛方法计算。