The effect of a nonresonant radiative field on low-energy rotationally inelastic Na+ + N2 collisions Journal Article


Author(s): Lemeshko, Mikhail P; Friedrich, Břetislav
Article Title: The effect of a nonresonant radiative field on low-energy rotationally inelastic Na+ + N2 collisions
Affiliation
Abstract: We examine the effects of a linearly polarized nonresonant radiative field on the dynamics of rotationally inelastic Na+ + N2 collisions at eV collision energies. Our treatment is based on the Fraunhofer model of matter wave scattering and its recent extension to collisions in electric fields [M. Lemeshko, B. Friedrich, J. Chem. Phys. 129 (2008) 024301]. The nonresonant radiative field changes the effective shape of the target molecule by aligning it in the space-fixed frame. This markedly alters the differential and integral scattering cross-sections. As the cross-sections can be evaluated for a polarization of the radiative field collinear or perpendicular to the relative velocity vector, the model also offers predictions about steric asymmetry of the collisions.
Keywords: Ion-molecule collisions; rotationally inelastic scattering; models of molecular collisions; alignment and orientation; induced dipole interaction
Journal Title: International Journal of Mass Spectrometry
Volume: 280
Issue 1-3
ISSN: 1387-3806
Publisher: Elsevier  
Date Published: 2009-02-01
Start Page: 19
End Page: 25
URL:
DOI: 10.1016/j.ijms.2008.06.010
Open access: yes (repository)