Determining the electron forward-scattering amplitude using electron interferometry

Robert C. Forrey, A. Dalgarno, Jörg Schmiedmayer

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We describe a method for measuring the forward-scattering amplitude for electron collisions with atoms or molecules. Our scheme uses a gas cell in one arm of an electron interferometer and measures the resulting attenuation and phase shift of the electron matter wave. The complex index of refraction of the gas is determined along with the forward-scattering amplitude. Calculations of the scattering of electrons by atoms are performed using a self-energy potential obtained by treating the atom as an inhomogeneous electron gas. The results indicate that the proposed experiments are feasible.

Original languageEnglish (US)
Pages (from-to)R942-R945
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
StatePublished - 1999

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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