Calculation of differential cross sections for electron impact excitation of H and He+

Autor:	Zhuo-Jin Lai, Lin-Qing Pan, Yong-Liang Xu, Xiao-Han Jiang, De-Feng Chen, Zhang-Jin Chen
Rok vydání:	2014
Předmět:	Physics Work (thermodynamics) law Double ionization Calibration Atomic physics Born approximation Laser Electron ionization Excitation Pulse (physics) law.invention
Zdroj:	Journal of Atomic and Molecular Sciences. 5:311-323
ISSN:	2079-7346 2075-1303
DOI:	10.4208/jams.022814.051414a
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::656825a1a40e978adf1238615987d378 https://doi.org/10.4208/jams.022814.051414a Zobrazit plný text záznamu