Abstract
We study here higher-order two-loop and three-loop logarithmic contributions to the Lamb shift in light hydrogenlike atoms. We have found the leading logarithmic contributions in order alpha(2)(Z alpha)(7)m and alpha(3)(Z alpha)(6) m for the arbitrary states. Those terms are double logarithmic for the ns states and single logarithmic for the np states and vanish for the states with l >= 2. We have also obtained the leading (single-logarithmic) contribution to the specially normalized difference for the Lamb shift of the ns states Delta(L)(n) = E-L(1s) - n(3)E(L)(ns), which is important for a combined evaluation of the overall set of the experimental data available on various transitions in hydrogen and deuterium.
Item Type: | Journal article |
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Faculties: | Physics |
Subjects: | 500 Science > 530 Physics |
ISSN: | 2469-9926 |
Language: | English |
Item ID: | 67076 |
Date Deposited: | 19. Jul 2019, 12:21 |
Last Modified: | 04. Nov 2020, 13:48 |