复合粒子离核散射的连续介质离散化方法：基准计算
Continuum discretization methods in a composite-particle scattering off a nucleus: the benchmark calculations
摘要：
直接比较了两种不同的连续离散方法对解决的复合粒子散射的核。第一种方法-连续离散耦合通道方法-是基于微分方程形式主义，而第二个-波包连续离散方法-使用积分方程配方的复合粒子散射问题。作为基准计算，我们选择了三种不同入射能量下的氘离\nuc{58}{Ni}目标散射（作为一个现实的说明性例子）：高，中，低。明确的非零效应的封闭非弹性通道在小和中等能量的建立。在这两种方法中发现的弹性截面对于所有三种考虑的能量彼此非常接近。
英文摘要：
The direct comparison of two different continuum discretization methods towards the solution of a composite particle scattering off a nucleus is presented. The first approach -- the Continumm-Discretized Coupled Channel method -- is based on the differential equation formalism, while the second one -- the Wave-Packet Continuum Discretization method -- uses the integral equation formulation for the composite-particle scattering problem. As benchmark calculations we have chosen the deuteron off \nuc{58}{Ni} target scattering (as a realistic illustrative example) at three different incident energies: high, middle and low. Clear non-vanishing effects of closed inelastic channels at small and intermediate energies are established. The elastic cross sections found in both approaches are very close to each other for all three considered energies.
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