In this work, the multi-center continuum distorted wave-eikonal initial state (MC-CDW-EIS) model is introduced. In contrast to previously reported CDW-EIS analyses for electron-molecule collisions, in which the ionized electron interacted with the molecular ion via a one-center effective potential, the multi-center nature of the molecular ion is explicitly taken into account. Results obtained for electron impact ionization of oriented H${}_2$ molecules at the fully differential level are presented and contrasted to recent experimental data and to reported theoretical calculations obtained with the Time Dependent Close Coupling method. Present results suggest that this simple molecule still represents a challenging target from the theoretical point of view and that many aspects of the ionization process at the fully differential level remain to be understood.

中文翻译：

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H2分子的电子碰撞电离的多中心连续畸变波本征初态描述

在这项工作中，引入了多中心连续波畸变波本征初始状态（MC-CDW-EIS）模型。与先前报道的CDW-EIS对电子-分子碰撞的分析相反，在离子-电子碰撞中，电离的电子通过一个中心有效电势与分子离子相互作用，明确考虑了分子离子的多中心性质。取向H的电子碰撞电离获得的结果${}_2$呈现了全微分级的分子，并将其与最新的实验数据进行了对比，并与通过时变紧密耦合法获得的报道的理论计算进行了对比。目前的结果表明，从理论的角度来看，这种简单的分子仍然代表着具有挑战性的目标，而且在完全差分水平上电离过程的许多方面仍有待理解。