Two-photon exchange correction to $2S$-$2P$ splitting in muonic helium-3 ions
Nuclear Theory
2017-02-01 v2 High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
We calculate the two-photon exchange correction to the Lamb shift in muonic helium-3 ions within the dispersion relations framework. Part of the effort entailed making analytic fits to the electron-He quasielastic scattering data set, for purposes of doing the dispersion integrals. Our result is that the energy of the 2 state is shifted downwards by two-photon exchange effects by 15.14(49) meV, in good accord with the result obtained from a potential model and effective field theory calculation.
Cite
@article{arxiv.1611.06192,
title = {Two-photon exchange correction to $2S$-$2P$ splitting in muonic helium-3 ions},
author = {Carl E. Carlson and Mikhail Gorchtein and Marc Vanderhaeghen},
journal= {arXiv preprint arXiv:1611.06192},
year = {2017}
}
Comments
10 pages, 4 figures, 2 tables; version submitted to Phys. Rev. A