Experimental study of spin-exchange effects in elastic and ionizing collisions of polarized electrons with polarized hydrogen atoms

Authors

G. D. Fletcher, J.W. Gibbs Laboratory, Yale University, New Haven, Connecticut
M. J. Alguard, J.W. Gibbs Laboratory, Yale University, New Haven, Connecticut
Timothy J. Gay, University of Nebraska - LincolnFollow
V. W. Hughes, J.W. Gibbs Laboratory, Yale University, New Haven, Connecticut
P.F. Wainwright, J.W. Gibbs Laboratory, Yale University, New Haven, Connecticut
M. S. Lubell, J.W. Gibbs Laboratory, Yale University, New Haven, Connecticut
W. Raith, J.W. Gibbs Laboratory, Yale University, New Haven, Connecticut

Date of this Version

May 1985

Comments

Published in Phys. Rev. A 31, 2854 - 2884 (1985) [Issue 5 – May 1985]. ©1985 The American Physical Society. Used by permission.

Abstract

Using crossed beams of polarized electrons and polarized hydrogen atoms we have investigated the effect of spin exchange on 90° elastic scattering from 4.4 to 30.3 eV and impact ionization from 14.1 to 197.0 eV. Our results suggest that the range of validity of various theoretical approximation methods is more restricted than had been assumed previously.