Scattering of state-selected molecules in the sudden approximation
- 28 August 1980
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 13 (16) , 3189-3199
- https://doi.org/10.1088/0022-3700/13/16/016
Abstract
It is shown that in the sudden approximation the differential cross section for scattering by state-selected molecules can be factored into a geometrical part depending on the experimental arrangement and the quantum numbers and a dynamical part which depends on the harmonic coefficients of the cross section for scattering by a fixed target. The importance of the dependence of the cross section on the azimuthal angle of scattering is emphasised. The Glauber approximation is employed to obtain the small-anisotropy limit of the cross section for forward, diffraction and classical scattering. The subsidiary infinite-order sudden (IOS), body-fixed and m-conserving approximations are investigated. The usual IOS approximation is found to be particularly poor and the other approximations satisfactory only for the azimuthal dependence of the cross section.Keywords
This publication has 19 references indexed in Scilit:
- Classical small-angle anisotropic potential scatteringJournal of Physics B: Atomic and Molecular Physics, 1980
- Classical small-angle anisotropic potential scatteringJournal of Physics B: Atomic and Molecular Physics, 1979
- Molecular beam measurements of inelastic cross sections for transitions between defined rotational states (j,m) of CsF in collisions with He, Ne, Ar, Kr, CH4, CF4, SF6, C2H6, N2, CO, CO2, N2O, CH3Cl, CH3Br, CF3H, and CF3BrThe Journal of Chemical Physics, 1979
- Non-reactive heavy particle collision calculationsComputer Physics Communications, 1979
- On an M-conserving approximation in time-dependent theories of rotational excitation in atom-molecule collisionsJournal of Physics B: Atomic and Molecular Physics, 1978
- Sudden atom-molecule collisions: CsF scattered by Ne, Ar, Kr and XeJournal of Physics B: Atomic and Molecular Physics, 1978
- Low-Energy Electron Scattering from Strongly Polar Molecules. I. Glauber ApproximationJournal of the Physics Society Japan, 1975
- The rotational excitation of carbon monoxide by hydrogen atom impactProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1975
- Quantum correction factors for classical small angle scattering by inverse power potentialsThe Journal of Chemical Physics, 1974
- Adiabatic Approximation for Scattering ProcessesPhysical Review B, 1956