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Título
Rotational ‘cooling’ and ‘heating’ of OH+(3Σ−) by collisions with He: quantum dynamics revealing propensity rules under ion trap conditions
Autor(es)
Materia
Cooling rates in traps
Quantum scattering calculations
Rotationally inelastic dynamics
Clasificación UNESCO
2210 Química Física
Fecha de publicación
2018
Editor
Molecular Physics
Citación
L. González-Sánchez, R. Wester & F.A. Gianturco (2018) Rotational ‘cooling’ and ‘heating’ of OH+(3Σ−) by collisions with He: quantum dynamics revealing propensity rules under ion trap conditions, Molecular Physics, 116:19-20, 2686-2697, DOI: 10.1080/00268976.2018.1442597
Resumen
[EN]Multichannel scattering calculations are presented for the low-energy collisions of the OH+ cation and He atoms, using an ab initio evaluation of the interaction potential, which had been obtained in earlier work, and a time-independent, multichannel treatment of the quantum dynamics carried out in this study using our in-house scattering code ASPIN. Given the presence of spin-rotation coupling effects, within an essentially electrostatic formulation of the interaction forces with He atoms in the trap, the ensuing propensity rules which control the relative size of the state-changing cross sections and of the corresponding inelastic rates, also computed at the most likely temperatures in an ion trap, are presented and analysed in detail.
URI
ISSN
0026-8976
DOI
10.1080/00268976.2018.1442597
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