期刊
PHYSICAL REVIEW A
卷 106, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.106.042805
关键词
-
资金
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [273811115 - SFB 1225]
The study evaluates the shift of atomic energy levels due to hadronic vacuum polarization for hydrogenlike ions and muonic hydrogen. Energy corrections are calculated for low-lying levels using analytical wave functions, comparing the results to existing formulas from nonrelativistic theory.
The shift of atomic energy levels due to hadronic vacuum polarization is evaluated in a semiempirical way for hydrogenlike ions and for muonic hydrogen. A parametric hadronic polarization function obtained from experimental cross sections of e-e+ annihilation into hadrons is applied to derive an effective relativistic Uehling potential. The energy corrections originating from hadronic vacuum polarization are calculated for low-lying levels using analytical Dirac-Coulomb wave functions, as well as bound wave functions accounting for the finite nuclear size. Closed formulas for the hadronic Uehling potential of an extended nucleus as well as for the relativistic energy shift in the case of a pointlike nucleus are derived. These results are compared to existing analytic formulas from nonrelativistic theory.
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