具有转动激发核的高电荷态²³⁸₉₂U离子的超精细结构。

Hyperfine structure of highly charged 23892U ions with rotationally excited nuclei.

作者信息

Labzowsky LN, Nefiodov AV, Plunien G, Soff G, Liesen D

机构信息

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.

出版信息

Phys Rev Lett. 2000 Jan 31;84(5):851-4. doi: 10.1103/PhysRevLett.84.851.

DOI:10.1103/PhysRevLett.84.851

PMID:11017388

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.

摘要

研究了处于低激发转动2(+)态（能量E(2(+)) = 44.91 keV）的23892U离子电子能级的超精细结构（hfs）。在类氢铀中，电子1s(1/2)基态的hfs分裂为1.8 eV。计算了类氦23892U的1s2p 3P0态的超精细猝灭（hfq）寿命，发现其比原子核处于基态的离子的寿命小2个数量级。讨论了通过测量hfq寿命精确确定转动2(+)态原子核g(r)因子的可能性。