Volume 5, Issue 4
Calculation of Differential Cross Sections for Electron Impact Excitation of $H$ and $He^+$

Zhuo-Jin Lai, De-Feng Chen, Lin-Qing Pan, Xiao-Han Jiang, Yong-Liang Xu & Zhang-Jin Chen

J. At. Mol. Sci., 5 (2014), pp. 311-323.

Published online: 2014-05

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  • Abstract

We present the distorted wave Born approximation (DWBA) for electron impact excitation and a method to calibrate the DWBA. With the calibrated DWBA, the differential cross sections (DCS) for excitation of $H$ and $He^+$ from 1s to 2s and 2p are calculated and the results are compared with the absolute experimental measurements for $H$ at incident energies of 50 eV and 100 eV. It has been found that the theoretical results are in very good agreement with the experiment, which confirms the validity of the calibration procedure. This work prepares an efficient theoretical method for numerical simulations of non-sequential double ionization of $He$ in strong laser pulse in which laser-induced electron impact excitation of $He^+$ is involved.

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COPYRIGHT: © Global Science Press

  • Email address

chenzj@stu.edu.cn (Zhang-Jin Chen)

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@Article{JAMS-5-311, author = {Lai , Zhuo-JinChen , De-FengPan , Lin-QingJiang , Xiao-HanXu , Yong-Liang and Chen , Zhang-Jin}, title = {Calculation of Differential Cross Sections for Electron Impact Excitation of $H$ and $He^+$}, journal = {Journal of Atomic and Molecular Sciences}, year = {2014}, volume = {5}, number = {4}, pages = {311--323}, abstract = {

We present the distorted wave Born approximation (DWBA) for electron impact excitation and a method to calibrate the DWBA. With the calibrated DWBA, the differential cross sections (DCS) for excitation of $H$ and $He^+$ from 1s to 2s and 2p are calculated and the results are compared with the absolute experimental measurements for $H$ at incident energies of 50 eV and 100 eV. It has been found that the theoretical results are in very good agreement with the experiment, which confirms the validity of the calibration procedure. This work prepares an efficient theoretical method for numerical simulations of non-sequential double ionization of $He$ in strong laser pulse in which laser-induced electron impact excitation of $He^+$ is involved.

}, issn = {2079-7346}, doi = {https://doi.org/10.4208/jams.022814.051414a}, url = {http://global-sci.org/intro/article_detail/jams/8297.html} }
TY - JOUR T1 - Calculation of Differential Cross Sections for Electron Impact Excitation of $H$ and $He^+$ AU - Lai , Zhuo-Jin AU - Chen , De-Feng AU - Pan , Lin-Qing AU - Jiang , Xiao-Han AU - Xu , Yong-Liang AU - Chen , Zhang-Jin JO - Journal of Atomic and Molecular Sciences VL - 4 SP - 311 EP - 323 PY - 2014 DA - 2014/05 SN - 5 DO - http://doi.org/10.4208/jams.022814.051414a UR - https://global-sci.org/intro/article_detail/jams/8297.html KW - electron impact excitation, distorted wave Born approximation, differential cross sections, total cross sections. AB -

We present the distorted wave Born approximation (DWBA) for electron impact excitation and a method to calibrate the DWBA. With the calibrated DWBA, the differential cross sections (DCS) for excitation of $H$ and $He^+$ from 1s to 2s and 2p are calculated and the results are compared with the absolute experimental measurements for $H$ at incident energies of 50 eV and 100 eV. It has been found that the theoretical results are in very good agreement with the experiment, which confirms the validity of the calibration procedure. This work prepares an efficient theoretical method for numerical simulations of non-sequential double ionization of $He$ in strong laser pulse in which laser-induced electron impact excitation of $He^+$ is involved.

Zhuo-Jin Lai, De-Feng Chen, Lin-Qing Pan, Xiao-Han Jiang, Yong-Liang Xu & Zhang-Jin Chen. (2019). Calculation of Differential Cross Sections for Electron Impact Excitation of $H$ and $He^+$. Journal of Atomic and Molecular Sciences. 5 (4). 311-323. doi:10.4208/jams.022814.051414a
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