Strong, Quasiperiodic Dependence of Autoionization Shape Parameters on Projectile Energy in H⁺ + He Collisions

Authors

F. D. Schowengerdt, University of Nebraska - Lincoln
M. Eugene Rudd, University of Nebraska - LincolnFollow

Document Type

Article

Date of this Version

1972

Comments

Published in Physical Review Letters 28, 127 - 130 (1972)
©1972 The American Physical Society. Used by permission.
URL: http://link.aps.org/doi/10.1103/PhysRevLett.28.127
DOI: 10.1103/PhysRevLett.28.127

Abstract

Profiles of the 2s² (¹S) autoionizing state in He have been observed in the ejected-electron spectrum of H⁺ + He for small angles of ejection and for H⁺ energies of 6 to 150 keV. The shape parameter q shows an increasing dependence on projectile energy as the angle of ejection is decreased, with strong, quasiperiodic oscillations appearing at 10°.