Quasiclassical study of differential inelastic scattering of orientedCa(4s5p,1P1

Abstract

A quasiclassical analysis of the differential inelastic scattering of oriented Ca(4s5 p, 1 P 1 ) atoms on He at a collision energy of 1 eV is presented. Inelastic channels correspond to spin-changing events populating different Zeeman sublevels of three fine-structure states of Ca(4s5p, 3 P j ), jϭ0, 1, and 2. The magnitude of the right-left scattering asymmetry in the helicopter plane is shown to depend on the locking dynamics. The relative values of different Zeeman-specific cross sections are determined by the diffraction scattering on the attractive 1 ⌸ state in the entrance channels, by the Coriolis mixing between degenerate components of the repulsive 3 ⌺ ϩ intermediate state, and by the radial coupling between 1-1 and 0 Ϫ -0 Ϫ fine-structure components of the 3 ⌺ ϩ -3 ⌸ ⍀ states in the exit channels. The predicted large right-left scattering asymmetry suggests that it can be measured experimentally.

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“…This chapter presented a short overview of the development of basic models of nonadiabatic coupling in connection with my activity in this field and made a short reference to the use of these models in the dynamics of atomic and molecular collisions. The other applications of the models discussed, which are of current interest to me, are the nonadiabatic effects in the scattering of excited atoms (73)(74)(75)(76), the VT energy exchange (77)(78)(79), the electronically nonadiabatic transitions in atom-diatom collisions (80), and the nonadiabatic effects in the formation and decomposition of molecular complexes (81)(82)(83)(84) within the framework of the statistical adiabatic channel model (85). Although all these works involved complex numerical computations, I am still fond of elegant simple models.…”

Eigenstates of Laser-Assisted Scattering in a Noninertial Frame

“…The Coriolis effect is also discussed in a classical way or as an effective potential in Refs. [21] ∼ [23]. Weigert [24] introduced the Coriolis effect in the phase factor for an effectively one-dimensional motion.…”