Large Angle Elastic Scattering of Electrons from Ar
- 7 August 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 75 (6) , 1062-1065
- https://doi.org/10.1103/physrevlett.75.1062
Abstract
Absolute angular differential cross sections have been experimentally determined for large angle scattering of a free electron by a positive ion for the first time. Data are presented for elastic scattering over the range 120°–170° from Ar at 3.3 eV. Interference effects are observed due to the competing short-range and Coulomb interactions. The importance of interference and correlation effects is demonstrated, and the consequent sensitivity of such measurements as a test of theoretical approximations is discussed.
Keywords
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