Abstract
We consider the effect of varying the angular orientation, or configuration, of field and initial relative velocity vectors for crossed-beam molecular scattering in the presence of intense non-resonant radiation. Expressions are presented for integral cross-sections specific to energy transfer in atomic collisons; the analysis can, however, readily be extended to include additional (molecular) degrees of freedom. The configuration dependence of the degeneracy-averaged cross-section appears as an expansion in even-order spherical harmonics Y L0 (with the orientation as argument). The expansion takes in spherical harmonics up to order 2p, where p is the highest-order photon (absorption and/or emission) process involved in the cross-section. We identify cross-sectional components arising from interference between transition-matrix elements; the potential information value of configuration-dependent (degeneracy-averaged) cross-sections, in the light of these interference effects, is considered. We also consid...
Published Version
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