# Near Resonance Charge Exchange in Ion-Atom Collisions of Lithium Isotopes

 Title: Near Resonance Charge Exchange in Ion-Atom Collisions of Lithium Isotopes Author: Zhang, Peng; Bodo, Enrico; Dalgarno, Alexander Note: Order does not necessarily reflect citation order of authors. Citation: Zhang, Peng, Enrico Bodo, and Alexander Dalgarno. 2009. “ Near Resonance Charge Exchange in Ion-Atom Collisions of Lithium Isotopes.” The Journal of Physical Chemistry A 113 (52) (December 31): 15085–15091. doi:10.1021/jp905184a. Access Status: Full text of the requested work is not available in DASH at this time (“dark deposit”). For more information on dark deposits, see our FAQ. Full Text & Related Files: JPhysChem113-15085.pdf (1.131Mb; PDF) Abstract: Collisions of ions and atoms of (6)Li and (7)Li are explored theoretically over a wide range of energy from 10(-14) to 1 eV. Accurate ab initio calculations are carried out of the Born-Oppenheimer potentials and the nonadiabatic couplings that are responsible for the near resonance charge exchange. Scattering studies show that the calculated charge exchange cross section follows Wigner's law for inelastic processes for energies below 10(-10) eV and that the zero temperature rate constant for it is 2.1 x 10(-9) cm(3) s(-1). At collision energies much larger than the isotope shift of the ionization potentials of the atoms, we show that the near resonance charge exchange process is equivalent to the resonance charge exchange with cross sections having a logarithmic dependence on energy. A comparison with the Langevin model at intermediate energies is also presented. Published Version: doi:10.1021/jp905184a Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:34903206 Downloads of this work: