Two-electron escape near threshold: A classical process?
- 28 March 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 72 (13) , 1998-2001
- https://doi.org/10.1103/physrevlett.72.1998
Abstract
For electron impact ionization of hydrogen the S matrix is determined by calculating Feynman’s path integral semiclassically. The total ionization probability is in excellent agreement with the experiment. At a critical excess energy of 3.3 eV the differential cross section for the energy sharing between the continuum electrons undergoes a qualitative change which limits the range of the threshold behavior. The Wannier threshold law is confirmed, but only in the limt of vanishing excess energy.This publication has 23 references indexed in Scilit:
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