arXiv:hep-ph/0210069·v1·High Energy Physics — Phenomenology
Delbruck scattering and the g-factor of a bound electron
Savely G. Karshenboim (D. I. Mendeleev Institute for Metrology and Max-Planck-Institut fur Quantenoptik)🇷🇺 · Alexander I. Milstein (Budker Institute of Nuclear Physics)🇷🇺
Abstract
The leading contribution of the light-by-light scattering effects to g-factor of a bound electron is derived. The corresponding amplitude is expressed in terms of low-energy Delbruck scattering of a virtual photon. The result reads Delta g = (7/216) alpha (Z alpha)^5.