arXiv:nucl-th/9812053·v1·Nuclear Theory
Hadronic Vacuum Polarization and the Lamb Shift
J.L. Friar🇺🇸 · J. Martorell🇪🇸 · D.W.L. Sprung🇨🇦
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.
Comments: 7 pages, latex, 1 figure -- Submitted to Phys. Rev. A -- epsfig.sty required