Ultra-cold ion-atom collisions: near resonant charge exchange

Details Ultra-cold ion-atom collisions: near resonant charge exchange Ultra-cold ion-atom collisions: near resonant charge exchange

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008njph...10c3024b&link_type=abstract

New Journal of Physics, Volume 10, Issue 3, pp. 033024 (2008).

Physics

7

Scientific paper

Accurate calculations of the near resonant charge exchange cross-sections in HD+, HT+ and DT+ 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.

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