Rydberg states of helium: A new recoil term
- 1 February 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 37 (3) , 979-980
- https://doi.org/10.1103/physreva.37.979
Abstract
The mass-polarization shift in the energy levels of 1sNL states of helium contains a term of second order in the ratio of the electron mass to that of the nucleus that is independent of L. Although inherent in an earlier work [Phys. Rev. A 33, 2780 (1986)], it was not pointed out there since only L-dependent splittings were of interest. The derivation is very simple and yields a correction of significance for the calculation of absolute ionization energies.Keywords
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