Abstract
Proton structure effects in hydrogenic bound states are analyzed using nonrelativistic QED effective field theory. Implications for the Lamb shift in muonic hydrogen are discussed. Model-dependent assumptions in previous analyses are isolated, and sensitivity to poorly constrained hadronic structure in the two-photon exchange contribution is identified.
- Received 1 April 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.160402
© 2011 American Physical Society