We report results from the application of the relativistic complex optical potential (ROP) method to electron–beryllium scattering. The energy range of this study was 0–5000 eV, with the results for the integral elastic cross sections, momentum transfer cross sections, summed discrete electronic-state excitation integral cross sections, and total ionisation cross sections (TICSs) being reported. However we will largely focus our discussion here on the TICS, due to its importance in simulating the plasma action on beryllium (Be) in the international thermonuclear reactor. The current level of agreement between the various theoretical approaches to calculating the TICS is well summarised in the work of Maihom et al. [Eur. Phys. J. D 67, 2 (2013)] and Blanco et al. [Plasma Sources Sci. Technol. 26, 085004 (2017)], with the level of accord between them being quite marginal. As a consequence, we revisit this problem with improved scattering potentials over those employed in the work of Blanco et al. In addition, we present results from an application of the binary-encounter-Bethe theory for the electron–Be TICS. We find a quite significant improvement in the level of agreement between the TICS from our new ROP calculation and the earlier B-spline R-matrix and convergent close coupling results [O. Zatsarinny et al., J. Phys. B: At., Mol. Opt. Phys. 49, 235701 (2016)], compared to that reported in the work of Blanco et al. As a result of this improved level of accord, we propose here a recommended TICS for e+Be scattering, as well as for the elastic integral and summed electronic-state excitation cross sections, which also incorporates uncertainty estimates for their validity.We report results from the application of the relativistic complex optical potential (ROP) method to electron–beryllium scattering. The energy range of this study was 0–5000 eV, with the results for the integral elastic cross sections, momentum transfer cross sections, summed discrete electronic-state excitation integral cross sections, and total ionisation cross sections (TICSs) being reported. However we will largely focus our discussion here on the TICS, due to its importance in simulating the plasma action on beryllium (Be) in the international thermonuclear reactor. The current level of agreement between the various theoretical approaches to calculating the TICS is well summarised in the work of Maihom et al. [Eur. Phys. J. D 67, 2 (2013)] and Blanco et al. [Plasma Sources Sci. Technol. 26, 085004 (2017)], with the level of accord between them being quite marginal. As a consequence, we revi...

中文翻译：

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电子-铍散射的相对论复光学势计算：推荐的横截面

我们报告了将相对论复光势 (ROP) 方法应用于电子 - 铍散射的结果。本研究的能量范围为 0-5000 eV，报告了积分弹性截面、动量传递截面、离散电子态激发积分截面和总电离截面 (TICS) 的结果。然而，由于 TICS 在模拟国际热核反应堆中铍 (Be) 的等离子体作用方面的重要性，我们将在此处主要讨论 TICS。Maihom 等人的工作很好地总结了计算 TICS 的各种理论方法之间的当前一致性水平。[欧元。物理。J. D 67, 2 (2013)] 和 Blanco 等人。[等离子体来源科学。技术。26, 085004 (2017)], 他们之间的一致程度非常低。因此，我们通过比布兰科等人的工作中使用的那些改进的散射势来重新审视这个问题。此外，我们展示了对电子-Be TICS 应用二元遭遇 Bethe 理论的结果。我们发现来自我们新 ROP 计算的 TICS 与早期 B 样条 R 矩阵和收敛紧密耦合结果之间的一致性水平有了相当显着的提高 [O. Zatsarinny 等人，J. Phys. B：在，摩尔。选择。物理。49, 235701 (2016)]，与布兰科等人的工作报告相比。由于这种一致性水平的提高，我们在此提出了用于 e+Be 散射以及弹性积分和总电子态激发截面的推荐 TICS，它还包含了对其有效性的不确定性估计。我们报告了将相对论复光势 (ROP) 方法应用于电子-铍散射的结果。本研究的能量范围为 0-5000 eV，报告了积分弹性截面、动量传递截面、离散电子态激发积分截面和总电离截面 (TICS) 的结果。然而，由于 TICS 在模拟国际热核反应堆中铍 (Be) 的等离子体作用方面的重要性，我们将在此处主要讨论 TICS。Maihom 等人的工作很好地总结了计算 TICS 的各种理论方法之间的当前一致性水平。[欧元。物理。J. D 67, 2 (2013)] 和 Blanco 等人。[等离子体来源科学。技术。26, 085004 (2017)]，他们之间的一致性水平非常低。因此，我们重新...