On the second Born approximation for laser-assisted e-Ar scattering

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Abstract
The absolute differential cross sections of e-Ar scattering in laser field are calculated employing the second Born approximation with the static screen potential including polarization potential and the single static screen potential in the special scattering geometry that the incident electron beam is parallel to the polarization direction of laser field. The second Born approximation gives better results than the low-frequency whem formula when compared with the experimental data, and it is found that the electron-atom polarization potential plays an important role in laser-assisted electron-atom scattering.

Keywords:
polarization potential /

second Born approximation /

differential cross section /

laser field
Authors and contacts
Sun Jin-Feng²,

Wang Xiao-Fei¹,

Zhu Zun-Lüe³,

Hu Qiu-Bo¹

(1)河南师范大学物理与信息工程学院，新乡 453007; (2)河南师范大学物理与信息工程学院，新乡 453007；洛阳师范学院物理与电子科学系，洛阳 471022; (3)河南师范大学物理与信息工程学院，新乡 453007；四川大学原子与分子物理研究所，成都 610065
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