Two-photon exchange corrections to the 2p(1/2)-2s transition energy in Li-like high-Z ions

Authors
Yerokhin, VA Artemyev, AN Shabaev, VM Sysak, MM Zherebtsov, OM Soff, G
Citation
Va. Yerokhin et al., Two-photon exchange corrections to the 2p(1/2)-2s transition energy in Li-like high-Z ions, PHYS REV L, 85(22), 2000, pp. 4699-4702
Citations number
28
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
85
Issue
22
Year of publication
2000
Pages
4699 - 4702
Database
ISI
SICI code
0031-9007(20001127)85:22<4699:TECTT2>2.0.ZU;2-V
Abstract
A rigorous QED calculation of the two-photon exchange corrections to the 2P (1)/(2)-2S transition energy in Li-like high-Z ions is presented. The contr ibution due to an exchange by more than two photons is evaluated within the Breit approximation. The resulting theoretical value of the 2P1/2-2S trans ition energy in Li-like uranium is found to be 280.44(20) eV.