New corrections to hyperfine splitting and lamb shift and the value of the rydberg constant
Eides M.I., Shelyuto V.A.
Corrections to hyperfme splitting and Lamb shift of order α (Za) induced by the diagrams with radiative photon insertions in the electron line are calculated in the Fried—Ycnnie gauge. These contributions are equal to -7.725(l)a2(Za)5/™3(mr/m)3m and -0.6726(4)α2(Ζα)/™3EF for the Lamb shift and hyperfme splitting, respectively. Phenomenological implications of these results are discussed.