Kinematically complete charge exchange experiment in the Cs(+)+Rb collision system using a MOT target

Phys Rev Lett. 2001 Sep 17;87(12):123203. doi: 10.1103/PhysRevLett.87.123203. Epub 2001 Aug 31.

Abstract

Charge exchange is examined with unprecedented precision using the newly developed magneto-optical trap-target recoil ion momentum spectroscopy (MOTRIMS) technique. Initial and final state selective, charge exchange cross sections are obtained for 6 keV Cs+ colliding with rubidium in 5s and 5p states. For each charge transfer channel, cross sections differential in scattering angle are measured. These data are used to overturn previous long-standing conjecture as to the origin of oscillations seen in total charge exchange cross section measurements, and compare well with an enhanced Demkov model calculation.