Theoretical investigations on the projectile coherence effects in fully differential ionization cross sections
Theoretical investigations on the projectile coherence effects in fully differential ionization cross sections
复制标题
全微分电离截面射弹相干效应的理论研究
DOI：
--
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
L. Nagy
中科院分区：
文献类型：
--
作者：
F. Járai;L. Nagy
本文提出了一种理论研究方法，用以检验入射光束相干性对轻原子单电离过程的影响。该方法是在一阶近似的框架下进行的，并对快速充电射弹产生的氦单电离的结果进行了测试。基于相同的电离振幅，对相干和非相干入射光束进行了全微分截面计算。通过这些完全微分截面和干涉效应的影响，弹丸相干性的影响进行了研究，通过截面比证明。所得结果与现有的实验数据进行了比较。通过这些计算，我们证实了射弹相干效应在这些电离过程中可能起着重要的作用。
We propose a theoretical investigation method for testing the effect of the projectile beam coherence on single ionization processes in light atoms. The method is carried out in the framework of a first-order approximation, and the results are tested for single ionization of helium produced by fast charged projectiles. Based on the same ionization amplitudes fully differential cross section calculations are performed for coherent and incoherent projectile beams. Projectile coherence effects are investigated through these fully differential cross sections and the interference effects are evidenced through cross section ratios. The obtained results are compared to the available experimental data. By these calculations we confirm that projectile coherence effects may have important role in these ionization processes.