Approximate Eikonal Exchange Amplitudes

Approximate Eikonal Exchange Amplitudes

A first-order correction is presented to a previously derived zeroth-order approximate eikonal exchange amplitude for electron-hydrogen scattering and both the modulus and the phase are compared with those of the exact eikonal exchange amplitude for elastic scattering. The correction term dramatical...

Ausführliche Beschreibung

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Veröffentlicht in:Phys. Rev. Lett.; (United States) 1981-01, Vol.46 (11), p.714-716
Hauptverfasser: Halpern, Alvin M., Franco, Victor
Format: Artikel
Sprache:eng
Schlagworte:
640304 - Atomic, Molecular & Chemical Physics- Collision Phenomena
AMPLITUDES
ATOM COLLISIONS
ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CORRECTIONS
EIKONAL APPROXIMATION
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HYDROGEN
LEPTONS
NONMETALS
ORIENTATION
SCATTERING AMPLITUDES
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Beschreibung
Zusammenfassung:A first-order correction is presented to a previously derived zeroth-order approximate eikonal exchange amplitude for electron-hydrogen scattering and both the modulus and the phase are compared with those of the exact eikonal exchange amplitude for elastic scattering. The correction term dramatically improves the approximation, even at energies as low as 50 eV.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.46.714