Measurement of the QED energy shift in the 1s(2)2p(3/2)-1s(2)2s(1/2) x-ray transition in Li-like (208)Pb(79+)

摘要

The 1s(2)2p(3/2)-1s(2)2s(1/2) x-ray transition in the Li-like Pb(79+) has been observed using the Tokyo electron beam ion trap at the University of Electro-Communications. The contribution of QED (-24.99 +/- 0.10 eV) to the 1s(2)2p(3/2)-1s(2)2s(1/2) transition in (208)Pb(79+) is determined and compared with different calculations. The measurement was made by calibrating the Pb line using the Lyman-alpha lines of the H-like S and the 1s4p (1)P(1)-1s(2) (1)S(0) transition in the He-like P.