Self-energy of then=2states in a strong Coulomb field

Abstract

A calculation of the self-energy radiative correction to the energy level of an electron in the $2S_{\frac{1}{2}}$, $2P_{\frac{1}{2}}$, or $2P_{\frac{3}{2}}$ state in a Coulomb field, with nuclear charge $Z$ in the range 10-110, is described.