Determination of two-channel scattering amplitudes using unitarity

A. Purwanto*, D. R. Lun, R. P. McEachran, S. J. Buckman

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A phase-shift analysis technique for two-channel scattering has been studied. The inputs to the study were the experimental differential cross sections and the unitarity condition was then used to extract the phase of the scattering amplitudes. A Newton iterative method based upon Frechet derivatives gave convergent results. The method was tested by using both simulated data and theoretical calculations for electron-helium scattering.

    Original languageEnglish
    Article number022703
    Pages (from-to)1-5
    Number of pages5
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume63
    Issue number2
    DOIs
    Publication statusPublished - 2001

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