Screened QED corrections to the g factor of Li-like ions
نویسندگان
چکیده
The screened QED corrections to the g factor of Li-like ions are evaluated utilizing an effective potential approach. The evaluation is performed within the range of nuclear charge numbers Z = 32 – 92. The results obtained serve for improving the theoretical predictions for the g factor of heavy Li-like ions. PACS numbers: 12.20.Ds, 31.30.Jv, 31.30.Gs
منابع مشابه
Hyperfine structure and g factor in heavy Li-like ions: rigorous evaluation of the screened QED corrections
Investigations of the hyperfine splitting and the g factor in highly charged ions give an access to a test of boundstate QED in strongest electromagnetic fields available at present for experimental study. To date, accurate measurements of the ground-state hyperfine structure and of the g factor were performed in H-like ions. An extention of such kind of experiments to highly charged Li-like io...
متن کامل3 0 O ct 2 00 7 g factor of Li - like ions with nonzero nuclear spin
The fully relativistic theory of the g factor of Li-like ions with nonzero nuclear spin is considered for the (1s)22s state. The magnetic-dipole hyperfine-interaction correction to the atomic g factor is calculated including the one-electron contributions as well as the interelectronic-interaction effects of order 1/Z. This correction is combined with the interelectronic-interaction, QED, nucle...
متن کاملQED Calculations of the Interelectron Interaction in Li-like Ions
Investigations of heavy few-electron atoms provide an excellent opportunity for testing QED in strong Coulomb fields. A remarkable high experimental precision has been reached in Lamb-shift measurements of Li-like ions. The uncertainty obtained e.g. for the 2p1/2 2s transition energy in Li-like Ni and Zn [1], Ag and Xe [2, 3] and U [4] is by an order of magnitude smaller than the QED contributi...
متن کاملRelativistic and QED effects to the g factor of Li-like ions
New perspectives for testing QED effects via g factor of highly charged ions motivated numerous investigations on this subject during the last years. High-precision measurements of the g factor of light H-like ions [1, 2] provided a new determination of the electron mass to an accuracy which is four times better than that of the previously accepted value (see Ref. [3] and references therein). T...
متن کاملRelativistic calculations of the isotope shifts in highly charged Li-like ions
N. A. Zubova1,2, Y. S. Kozhedub1,2, V. M. Shabaev1, I. I. Tupitsyn1, A.V. Volotka1,3, G. Plunien3, C.Brandau4,5,6, and Th. Stöhlker4,7,8 1St. Petersburg State University, Russia; 2SSC RF ITEP of NRC “Kurchatov Institute”, Russia; 3TU Dresden, Germany; 4GSI Darmstadt, Germany; 5ExtreMe Matter Institute EMMI and Research Division GSI Darmstadt, Germany; 6Justus-Liebig-University Giessen, Germany;...
متن کامل