Hadronic Vacuum Polarization and the Lamb Shift

Abstract

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 r.m.s. radii of nuclei.

7 pages, latex, 1 figure -- Submitted to Phys. Rev. A -- epsfig.sty required

References in corpus (2)

• Hadronic contributions to $(g-2)$ of the leptons and to the effective fine structure constant $\alpha (M_Z^2)$
• Hadronic Vacuum Polarization Contribution to g-2 of the Leptons and alpha(M_Z)

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