title: Hyperfine structure of highly charged 23892U ions with rotationally excited nuclei
abstract: The hyperfine structure (hfs) of electron levels of 23892U 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 3P0 state has been calculated for heliumlike 23892U and was found to be 2 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.
authors.affiliation: Max-Planck-Institut fur Physik komplexer Systeme, Nothnitzer Strasse 38, D-01187 Dresden, Germany and St. Petersburg State University, 198904 St. Petersburg, Russia and Petersburg Nuclear Physics Institute, 188350 Gatchina, St. Peters.
authors.initials: LN
authors.lastname: Labzowsky
authors.initials: AV
authors.lastname: Nefiodov
authors.initials: G
authors.lastname: Plunien
authors.initials: G
authors.lastname: Soff
authors.initials: D
authors.lastname: Liesen