A perturbation-expansion approach is used to examine the sign of the orientation vector as a function of scattering angle and projectile charge. It is shown that for small angles, the sign of the orientation vector is different for oppositely charged projectiles consistent with the prediction of the classical grazing model. At large angles, on the other hand, the orientation vector for oppositely charged projectiles is shown to have the same sign.
D. H. Madison and K. H. Winters, "Orientation of Atoms Excited by Charged Particles at High Impact Energies," Physical Review Letters, vol. 47, no. 26, pp. 1885-1887, American Physical Society (APS), Oct 1981.
The definitive version is available at https://doi.org/10.1103/PhysRevLett.47.1885
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© 1981 American Physical Society (APS), All rights reserved.
01 Oct 1981