We calculate hard spin-independent three-loop radiative corrections to energy levels in muonium and positronium which are due to radiative corrections with polarization insertions in two-photon exchange diagrams. These corrections could be relevant for the new generation of precise 1S-2S and 2S-2P measurements in muonium and positronium.
|Journal||Physical Review A|
|State||Published - Jan 2022|
Bibliographical noteFunding Information:
This work was supported by NSF Grants No. PHY-1724638 and No. PHY- 2011161.
© 2022 American Physical Society.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics