Dissociation energy of the hydrogen molecule at 10$^{-9}$ accuracy
Chemical Physics
2018-07-11 v1 Atomic Physics
Abstract
The ionization energy of ortho-H has been determined to be cm from measurements of the GK(1,1)--X(0,1) interval by Doppler-free two-photon spectroscopy using a narrow band 179-nm laser source and the ionization energy of the GK(1,1) state by continuous-wave near-infrared laser spectroscopy. (H) was used to derive the dissociation energy of H, (H), at cm with a precision that is more than one order of magnitude better than all previous results. The new result challenges calculations of this quantity and represents a benchmark value for future relativistic and QED calculations of molecular energies.
Keywords
Cite
@article{arxiv.1804.11143,
title = {Dissociation energy of the hydrogen molecule at 10$^{-9}$ accuracy},
author = {C. Cheng and J. Hussels and M. Niu and H. L. Bethlem and K. S. E. Eikema and E. J. Salumbides and W. Ubachs and M. Beyer and N. J. Hölsch and J. A. Agner and F. Merkt and L. -G. Tao and S. -M. Hu and Ch. Jungen},
journal= {arXiv preprint arXiv:1804.11143},
year = {2018}
}
Comments
6 pages, 5 figures