English

Higher-order corrections to spin-orbit and spin-spin tensor interactions in hydrogen molecular ions: theory and application to H$_2^+$

Atomic Physics 2022-09-14 v1

Abstract

We consider higher-order corrections to hyperfine coefficients related to the spin-orbit and spin-spin tensor interactions in hydrogen molecular ions. The mα7ln(α)m\alpha^7 \ln(\alpha)-order radiative correction is derived in the NRQED framework. We present complete numerical calculations, including as well the mα6m\alpha^6-order relativistic correction, for the case of H2+_2^+. The theoretical uncertainty is reduced by more than one order of magnitude with respect to the Breit-Pauli level, down to a few ppm. We also compare our results with available rf spectroscopy data.

Keywords

Cite

@article{arxiv.2207.01535,
  title  = {Higher-order corrections to spin-orbit and spin-spin tensor interactions in hydrogen molecular ions: theory and application to H$_2^+$},
  author = {Mohammad Haidar and Vladimir I. Korobov and Laurent Hilico and Jean-Philippe Karr},
  journal= {arXiv preprint arXiv:2207.01535},
  year   = {2022}
}