English

Improved theoretical prediction for the 2s hyperfine interval in helium ion

High Energy Physics - Phenomenology 2009-11-11 v1

Abstract

We consider the uncertainty of theoretical calculations for a specific difference of the hyperfine intervals in the 1s and 2s states in a light hydrogen-like atom. For a number of crucial radiative corrections the result for hydrogen atom and helium ion appears as an extrapolation of the numerical data from medium to low Z. An approach to a plausible estimation of the uncertainty is suggested using the example of the difference D21=8Ehfs(2s)Ehfs(1s)D_{21}= 8E_{hfs}(2s)-E_{hfs}(1s).

Keywords

Cite

@article{arxiv.hep-ph/0507322,
  title  = {Improved theoretical prediction for the 2s hyperfine interval in helium ion},
  author = {Savely G. Karshenboim and Vladimir G. Ivanov},
  journal= {arXiv preprint arXiv:hep-ph/0507322},
  year   = {2009}
}
R2 v1 2026-07-22T14:03:16.145Z