Publication Type
Conference Paper
Journal Name
Journal of Physics: Conference Series
Publication Date
Page Number
012043
Volume
194
Conference Name
XXVI International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC)
Conference Location
Kalamazoo, Michigan, United States of America
Conference Date
-
Abstract
Synopsis The hydrogen - hydrogen (deuterium) molecular ion is the most fundamental ion-molecule two-electron system. Charge transfer proceeds through dynamically coupled electronic, vibrational and rotational degrees of freedom. Using the ion-atom merged-beams apparatus at Oak Ridge National Laboratory absolute charge transfer cross sections for D<sub>2</sub><sup>+</sup> + H are measured from keV/u collision energies where the collision is considered "ro-vibrationally frozen" to meV/u energies where collision times are long enough to sample vibrational and rotational modes. The measurements benchmark high energy theory and vibrationally specific adiabatic theory.