Differential Cross Sections for the Ionization of Oriented H(2) Molecules by Electron Impact

作者:Colgan J*; Pindzola M S; Robicheaux F; Kaiser C; Murray A J; Madison D H
来源:Physical Review Letters, 2008, 101(23): 233201.
DOI:10.1103/PhysRevLett.101.233201

摘要

A nonperturbative close-coupling technique is used to calculate differential cross sections for the electron-impact ionization of H(2) at an energy of 35.4 eV. Our approach allows cross sections for any orientation of the molecule with respect to the incident electron beam to be analyzed. New features in the resulting cross sections are found compared with the case where the molecular orientation is averaged, and also with cross sections for He at equivalent electron kinematics. When averaged over all possible molecular orientations, good agreement is found with recent experimental results.

  • 出版日期2008-12-5