{"paper":{"title":"Nonlinear calcium King plot constrains new bosons and nuclear properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"A. Mariotti, A. Surzhykov, A. Viatkina, A. Wilzewski, C. H. Keitel, C. Lyu, D. Kienzler, D. P. L. Aude Craik, E. Benkler, E. Fuchs, F. Schmid, I. A. Valuev, J. C. Berengut, J. Flannery, J. Gilles, J. Herkenhoff, J. Home, J. R. Crespo L\\'opez-Urrutia, J. Richter, K. Blaum, K. Kromer, L. I. Huber, L. J. Spie{\\ss}, M. Door, M. Filzinger, M. K. Rosner, M. R. Steinel, M. Stadler, M. Wehrheim, N. Huntemann, N. S. Oreshkina, P. Filianin, P. Micke, P. O. Schmidt, R. Matt, R. Oswald, S. A. King, S. Banerjee, S. Chen, S. Eliseev, V. A. Yerokhin, Z. Harman","submitted_at":"2024-12-13T16:54:19Z","abstract_excerpt":"Nonlinearities in King plots (KP) of isotope shifts (IS) can reveal the existence of beyond-Standard-Model (BSM) interactions that couple electrons and neutrons. However, it is crucial to distinguish higher-order Standard Model (SM) effects from BSM physics. We measure the IS of the transitions ${{}^{3}P_{0}~\\rightarrow~{}^{3}P_{1}}$ in $\\mathrm{Ca}^{14+}$ and ${{}^{2}S_{1/2} \\rightarrow {}^{2}D_{5/2}}$ in $\\mathrm{Ca}^{+}$ with sub-Hz precision as well as the nuclear mass ratios with relative uncertainties below $4\\times10^{-11}$ for the five stable, even isotopes of calcium (${}^{40,42,44,46"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.10277","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.10277/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}