| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9818064 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2005 | 6 Pages |
Abstract
We investigate the appearance of fingerprints of saddle-point electrons in the ionization of atoms and molecules by positron impact. We calculate the quintuple differential cross section by means of a continuum distorted wave approximation that employs the correct kinematics. We find a clear structure located at precisely the energy and emission angle where a saddle-point electron is supposed to appear. Unmistakable signatures of this structure can also been pinpointed in the projectile dispersion and the recoiling of the target ion.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
R. Della Picca, J. Fiol, R.O. Barrachina,