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

Atoms

Viatcheslav Kokoouline¹  Mehdi Ayouz² 

[1] Department of Physics, University of Central Florida, Orlando, FL 32816, USA;Laboratoire de Genie des Procedes et des Materiaux, Ecole Centrale Paris, CentraleSupelec, campus de Chatenay-Malabry Grande Voie des Vignes F-92 295 Chatenay-Malabry Cedex, France;

关键词: helium hydride ion;    vibrational excitation;    R-matrix;    quantum-defect theory;   

DOI  :  10.3390/atoms4040030

来源: DOAJ

【 摘 要 】

Cross sections and thermally-averaged rate coefficients for vibration (de-)excitation of HeH + by an electron impact are computed using a theoretical approach that combines the multi-channel quantum defect theory and the UK R-matrix code. Fitting formulas with a few numerical parameters are derived for the obtained rate coefficients. The interval of applicability of the formulas is from 40 to 10,000 K.

【 授权许可】

Unknown