Evidence for second-Born-approximation contributions to continuum-electron capture by positive ions

Journal Article · Mon Jun 15 04:00:00 EDT 1981 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.46.1571· OSTI ID:6315135

Macek, J; Potter, J E; Duncan, M M; Menendez, M G; Lucas, M W; Steckelmacher, W

We describe a unique indicator for the effect of second Born terms in the secondary-electron spectra of continuum-electron capture by positive ions. Specifically, a discontinuity in the function f(v/sub e/,v/sub p/,theta/sub e/) where d/sup 3/sigmaproportional( f(v/sub e/,v/sub p/,theta/sub e/)/Vertical Barv/sub e/-v/sub p/Vertical Bar) dE/sub e/ d..cap omega../sub e/ indicates second Born contributions. Three different experiments are analyzed with respect to this indicator. In all cases we find strong evidence for the discontinuity and hence the presence of second Born terms.

• Research Organization: Behlen Laboratory of Physics, University of Nebraska, Lincoln, Nebraska 68588
• OSTI ID: 6315135
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 46:24; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ASYMMETRY
ATOM COLLISIONS
BORN APPROXIMATION
CAPTURE
CARBON
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELEMENTS
EMISSION
ENERGY RANGE
FLUIDS
GASES
HELIUM
HELIUM IONS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
MEV RANGE
MEV RANGE 01-10
NONMETALS
RARE GASES
SECONDARY EMISSION