{"paper":{"title":"Precision measurement of the $^{43}$Ca$^{+}$ nuclear magnetic moment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"D. M. Lucas, D. T. C. Allcock, M. A. Sepiol, R. K. Hanley, T. P. Harty","submitted_at":"2021-05-21T13:44:01Z","abstract_excerpt":"We report precision measurements of the nuclear magnetic moment of \\textsuperscript{43}Ca\\textsuperscript{+}, made by microwave spectroscopy of the 4s $^2$S$_{1/2}$ $\\left|F=4, M=0\\right\\rangle \\rightarrow \\left|F=3, M=1\\right\\rangle$ ground level hyperfine clock transition at a magnetic field of $\\approx$ 146 G, using a single laser-cooled ion in a Paul trap. We measure a clock transition frequency of $f = 3199941076.920 \\pm 0.046$ Hz, from which we determine $\\mu_I / \\mu_{\\rm{N}} = -1.315350(9)(1)$, where the uncertainty (9) arises from uncertainty in the hyperfine $A$ constant, and the (1) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.10352","kind":"arxiv","version":2},"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/2105.10352/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"}