Research Papers in Physics and Astronomy


Date of this Version

December 1972


Published by American Physical Society. Phys. Rev. Letters 29, 1639 (1972). Copyright © 1972 American Physical Society. Permission to use.


An electron transmission experiment is used to study the resonances in the total scattering cross section of atomic hydrogen below the threshold of the first excited state. The three lowest resonances, designated 1S, 3P, and 1D, are observed and their energies and decay widths are found to be in good agreement with the values predicted theoretically using close coupling with correlation.

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