{"paper":{"title":"Dissociation energy of the hydrogen molecule at 10$^{-9}$ accuracy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"physics.chem-ph","authors_text":"C. Cheng, Ch. Jungen, E. J. Salumbides, F. Merkt, H. L. Bethlem, J. A. Agner, J. Hussels, K. S. E. Eikema, L.-G. Tao, M. Beyer, M. Niu, N. J. H\\\"olsch, S.-M. Hu, W. Ubachs","submitted_at":"2018-04-30T12:09:52Z","abstract_excerpt":"The ionization energy of ortho-H$_2$ has been determined to be $E^\\mathrm{o}_\\mathrm{I}(\\mathrm{H}_2)/(hc)=124\\,357.238\\,062(25)$ cm$^{-1}$ 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. $E^\\mathrm{o}_\\mathrm{I}$(H$_2$) was used to derive the dissociation energy of H$_2$, $D^{N=1}_{0}$(H$_2$), at $35\\,999.582\\,894(25)$ cm$^{-1}$ with a precision that is more than one order of magnitude better than all previous res"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.11143","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}