title: Model independent analysis of proton structure for hydrogenic bound states.
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.
authors: Enrico Fermi Institute and Department of Physics The University of Chicago, Chicago, Illinois 60637, USA.
authors: Richard J
authors: RJ
authors: Hill
authors: Gil
authors: G
authors: Paz