Statistical regularization as applied to phase-shift analysis of elastic scattering data and to the construction of potentials from such data is discussed. A recent phase-shift analysis and determination of potentials from e-He scattering data below the first excitation threshold are substantially improved by these techniques. The extraction of total elastic and momentum transfer cross sections from the differential cross-section data with a rigorous error analysis is discussed.

• Received 17 April 1987

DOI:https://doi.org/10.1103/PhysRevA.36.2570