Hyperfine anomaly in the spectrum of the osmium atom. effect of the spatial distribution of nuclear charge |
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Authors: | A V Loginov I I Tupitsyn |
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Institution: | (1) Vavilov State Optical Institute, All-Russia Scientific Center, St. Petersburg, 199034, Russia;(2) Institute of Physics, St. Petersburg State University, Peterhof, St. Petersburg, 198904, Russia |
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Abstract: | Contributions of the superposition of configurations ns 25d 8+ns5d 8 n′s (n=1–5, n′=6–10) and ns 25d 6+ns5d 6 n′s (n=1–6, n′=7–10) to parameters a 5d 01 , a 5d 12 , and a 5d 10 of the hyperfine structure in the spectrum of the osmium atom OsI are calculated. It is shown that the nonzero contribution is made only to a 5d 10 . The effect of the spatial distribution of nuclear charge on the parameters of the hyperfine structure in the spectra of 187Os and 189Os isotopes and on the hyperfine anomaly for the 5d 76s levels in the spectrum of these isotopes is estimated. |
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