Phase-shift analysis of e-He scattering data and determination of the potential by inversion

L. J. Allen
Phys. Rev. A 34, 2706 – Published 1 October 1986
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Abstract

A parametrized phase-shift analysis of the e-He scattering data of Andrick and Bitsch for energies below the first excitation threshold is carried out. This approach does not assume that the higher-order phase shifts are given by the Born approximation and allows a rigorous analysis of the statistical errors. We obtain better χ2 values for our fits to these data than do Andrick and Bitsch. As a by-product of our phase-shift analysis we can obtain the interaction potential with associated confidence limits. The tail of these potentials is consistent with the assumption of adiabatic polarization at energies below the first excitation threshold.

  • Received 10 June 1986

DOI:https://doi.org/10.1103/PhysRevA.34.2706

©1986 American Physical Society

Authors & Affiliations

L. J. Allen

  • Department of Physics, University of South Africa, P.O. Box 392, Pretoria, 0001 South Africa

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Issue

Vol. 34, Iss. 4 — October 1986

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