Chakrabarti, K;
Dora, A;
Ghosh, R;
Choudhury, BS;
Tennyson, J;
(2017)
R-matrix study of electron impact excitation and dissociation of CH+ ions.
Journal of Physics B: Atomic, Molecular and Optical Physics
, 50
(17)
, Article 175202. 10.1088/1361-6455/aa8377.
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Abstract
Electron impact excitation and electron impact dissociation of CH+ ions are studied in the framework of the R-matrix method using the diatomic version of the UK molecular R-matrix codes. A configuration interaction calculation is first performed to yield the potential energy curves of the lowest eight singlet and triplet states of CH+. Scattering calculations are then performed to yield vibrationally-resolved electronic excitations to the lowest three bound states, namely the a 3 P, A 1 P and the b 3 S-. Electron impact dissociation cross sections are obtained from the assumption that all electronic excitations above the dissociation threshold result in dissociation. Bound states of CH and resonance positions and widths of Feshbach resonances in the e–CH+ system are also calculated at the CH+ equilibrium bond length 2.137 a0.
| Type: | Article |
|---|---|
| Title: | R-matrix study of electron impact excitation and dissociation of CH+ ions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1361-6455/aa8377 |
| Publisher version: | https://doi.org/10.1088/1361-6455/aa8377 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Optics, Physics, Atomic, Molecular & Chemical, Physics, Electron-Molecule Collisions, Resonances, Impact Dissociation, Franck-Condon Factors, R-Matrix, Potential-Energy Curves, Rotational-Excitation, Coupled Equations, Continuum States, Dipole-Moments, Cross-Section, Bound-States, Program, Molecule, System |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10054330 |
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