The hyperfine structure of highly charged ${}_{92}^{238}$U ions with rotationally excited nuclei

Abstract

The hyperfine structure (hfs) of electron levels of ${}_{92}^{238}$U ions with the nucleus excited in the low-lying rotational $2^{+}$ state with an energy $E_{2^{+}}=44.91$ keV is investigated. In hydrogenlike uranium, the hfs splitting for the $1s_{1/2}$-ground state of the electron constitutes 1.8 eV. The hyperfine-quenched (hfq) lifetime of the $1s2p^3{P}_0$ state has been calculated for heliumlike ${}_{92}^{238}$U and was found to be two orders of magnitude smaller than for the ion with the nucleus in the ground state. The possibility of a precise determination of the nuclear $g_r$ factor for the rotational $2^{+}$ state by measurements of the hfq lifetime is discussed.

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Cited by in corpus (3)

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