Nuclear Structure-Dependent Radiative Corrections to the Hydrogen Hyperfine Splitting
Savely G. Karshenboim
Abstract
Radiative corrections to the Zemach contribution of the hydrogen hyperfine splitting are calculated. Their contributions amount to -0.63(3) ppm to the HFS. The radiative recoil corrections are estimated to be 0.09(3) ppm and heavy particle vacuum polarization shifts the HFS by 0.10(2) ppm. The status of the nuclear-dependent contributions are considered. From the comparison of theory and experiment the proton polarizability contribution of 3.5(9) ppm is found. The nuclear structure-dependent corrections to the difference νhfs(1s) -n3νhfs(ns) are also obtained.
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