QUANTUM DEFECTS IN RYDBERG STATES: INTERACTION BETWEEN THE SERIES $s\sigma$ AND $d\sigma$ IN NO.
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Date
1969
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Ohio State University
Abstract
In a Rydberg state of a very light diatomic molecule, like $H_{2}$ or $H e_{2}$, the Rydberg electron is characterized by a nearly integral value, l, of the orbital angular momentum quantum number. Rydberg series can therefore be characterized by quantum numbers n, l and $\lambda$ and each series (i.e. fixed l and $\lambda$) has a nearly constant quantum defect $\delta$. In a heavier molecule the molecular core can cause a mixing of some pairs of $n/\lambda$ Rydberg series. The NO molecule, for which the best experimental data are available, is discussed as an example. A quantitative treatment of the interaction between levels in the series $(n+1)s\sigma$ and $nd\sigma$ leads to ``deperturbed'' Rydberg series which are closely similar to those of an alkali atom.
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Author Institution: Division of Pure Physics, National Research Council of Canada