Cross Sections and Rate Coefficients for Rotational Excitation of HeH+ Molecule by Electron Impact

被引：7
|
作者：
Khamesian, Marjan [1 ]
Ayouz, Mehdi [2 ]
Singh, Jasmeet [1 ,3 ]
Kokoouline, Viatcheslav [1 ]
机构：
[1] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA
[2] Univ Paris Saclay, LGPM, Cent Supelec, 8-10 Rue Joliot Curie, F-91190 Gif Sur Yvette, France
[3] Univ Delhi, Dept Phys, Keshav Mahavidyalaya, Delhi 110034, India
来源：
ATOMS | 2018年 / 6卷 / 03期
基金：
美国国家科学基金会;
关键词：
helium hydride ion; rotational excitation; R-matrix; quantum-defect theory;
D O I：
10.3390/atoms6030049
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Cross sections for rotational excitation and de-excitation of the HeH+ ion by an electron impact are computed using a theoretical approach that combines the UK R-matrix code and the multi-channel quantum defect theory. The thermally-averaged rate coefficients derived from the obtained cross sections are fitted to an analytical formula valid for a wide range of temperatures.
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收藏
页数：12
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