The hydrogen-hydrogen collision system is studied employing a four-body quasi-classical trajectory Monte Carlo model of Kirschbaum and Wilets (QCTMC-KW, C. L. Kirschbaun and L. Wilet, Phys. Rev. A: At., Mol., Opt. Phys., 1980, 21, 834). We present the total ionization cross-section of the target and projectile as a result of pure ionization and electron transfer processes. Calculations were performed in the intermediate energy regime, which is crucial to fusion research. Our results were compared with previous theoretical and experimental results. We found that the quasi-classical approach accurately describes the cross sections of a variety of final channels. We found that the cross-section results by the QCTMC-KW method are higher compared with the standard four-body CTMC results and in good agreement with the experimental data, particularly at low energies.

中文翻译：

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准经典轨迹蒙特卡罗模型在两个氢原子碰撞中的电离截面

使用 Kirschbaum 和 Wilets (QCTMC-KW, CL Kirschbaun 和 L. Wilet, Phys. Rev. A: At., Mol., Opt.) 的四体准经典轨迹 Monte Carlo 模型研究氢-氢碰撞系统。物理。, 1980, 21, 834)。我们展示了纯电离和电子转移过程导致的目标和射弹的总电离横截面。计算是在中间能量状态下进行的，这对聚变研究至关重要。我们的结果与之前的理论和实验结果进行了比较。我们发现准经典方法准确地描述了各种最终通道的横截面。我们发现，与标准四体 CTMC 结果相比，QCTMC-KW 方法的横截面结果更高，并且与实验数据非常吻合，特别是在低能量下。