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Hadronic vacuum polarization and the Lamb shift

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Recent improvements in the determination of the running of the fine-structure constant also allow an update of the hadronic vacuum-polarization contribution to the Lamb shift. We find a shift of -3.40(7) kHz to the 1S level of hydrogen. We also comment on the contribution of this effect to the determination by elastic electron scattering of the rms radii of nuclei.

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Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.59.4061

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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Hadronic vacuum polarization and the Lamb shift