Accurate calculations of the near resonant charge exchange crosssections in HD+, HT+ and Dr at very low energies are presented. The charge exchange process between an ion and its parent atom is a near resonant process that becomes inelastic when two different isotopes are involved. We find that, at very low energies, the charge exchange cross-section follows Wigner's law for inelastic processes and becomes much larger than the cross-section for elastic collisions which tends to a finite limit. The efficiency of inelastic charge exchange increases as the mass difference between the two isotopes decreases. © IOP Publishing Ltd and Deutsche Physikalische Gesellscha.
Ultra-cold ion-atom collisions: near resonant charge exchange / Bodo, Enrico; Zhang, Peng; Dalgarno, Alexander. - In: NEW JOURNAL OF PHYSICS. - ISSN 1367-2630. - STAMPA. - 10:(2008). [10.1088/1367-2630/10/3/033024]
Ultra-cold ion-atom collisions: near resonant charge exchange
Bodo, Enrico
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2008
Abstract
Accurate calculations of the near resonant charge exchange crosssections in HD+, HT+ and Dr at very low energies are presented. The charge exchange process between an ion and its parent atom is a near resonant process that becomes inelastic when two different isotopes are involved. We find that, at very low energies, the charge exchange cross-section follows Wigner's law for inelastic processes and becomes much larger than the cross-section for elastic collisions which tends to a finite limit. The efficiency of inelastic charge exchange increases as the mass difference between the two isotopes decreases. © IOP Publishing Ltd and Deutsche Physikalische Gesellscha.File | Dimensione | Formato | |
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Bodo_Ultra-cold_2008.pdf
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Note: https://iopscience.iop.org/article/10.1088/1367-2630/10/3/033024
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