{"paper":{"title":"Demonstration of sensitivity increase in mercury free-spin-precession magnetometers due to laser-based readout for neutron electric dipole moment searches","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex","physics.atom-ph"],"primary_cat":"physics.ins-det","authors_text":"A. Kozel, A. Mtchedlishvili, A. Weis, B. Franke, B. Lauss, D. Rebreyend, D. Ries, D. Rozpedzik, F.M. Piegsa, G. Ban, G. Bison, G. Pignol, G. Qu\\'em\\'ener, G. Wyszynski, G. Zsigmond, H.-C. Koch, J. Krempel, J. Zejma, K. Bodek, K. Kirch, M. Daum, M. Fertl, M. Horras, M. Kasprzak, M. Rawlik, N. Severijns, P. Prashanth, P. Schmidt-Wellenburg, S. Komposch, S. Roccia, T. Lefort, W. Heil, Y. Kermaidic, Z. D. Gruji\\'c","submitted_at":"2018-04-16T11:49:08Z","abstract_excerpt":"We report on a laser based $^{199}$Hg co-magnetometer deployed in an experiment searching for a permanent electric dipole moment of the neutron. We demonstrate a more than five times increased signal to-noise-ratio in a direct comparison measurement with its $^{204}$Hg discharge bulb-based predecessor. An improved data model for the extraction of important system parameters such as the degrees of absorption and polarization is derived. Laser- and lamp-based data-sets can be consistently described by the improved model which permits to compare measurements using the two different light sources "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05838","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"}