%0 Journal Article %T Cross Sections and Rate Coefficients for Rotational Excitation of HeH+ Molecule by Electron Impact %A Jasmeet Singh %A Marjan Khamesian %A Mehdi Ayouz %A Viatcheslav Kokoouline %J Atoms | An Open Access Journal from MDPI %D 2018 %R https://doi.org/10.3390/atoms6030049 %X Abstract 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. View Full-Tex %K helium hydride ion %K rotational excitation %K R-matrix %K quantum-defect theory %U https://www.mdpi.com/2218-2004/6/3/49