{"paper":{"title":"Limit on the Electric Charge of Antihydrogen","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"A. Capra, A.E. Charman, A. Gutierrez, A.I. Zhmoginov, A. Little, A. Olin, A. Povilus, C.A. Isaac, C. Amole, C.L. Cesar, C. So, D.M. Silveira, D.P. van der Werf, D.R. Gill, E. Butler, E. Sarid, F. Robicheaux, J. Fajans, J.S. Hangst, J.S. Wurtele, J.T.K. McKenna, K. Olchanski, L .Kurchaninov, M. Baquero-Ruiz, M.C. Fujiwara, M. Charlton, M.D. Ashkezari, M.E. Hayden, P. Nolan, P. Pusa, R.I. Thompson, S.C. Napoli, S. Eriksson, S. Jonsell, S. Menary, T.D. Tharp, T. Friesen, W. Bertsche, W.N. Hardy, Z. Vendeiro","submitted_at":"2021-07-17T00:51:22Z","abstract_excerpt":"The ALPHA collaboration has successfully demonstrated the production and the confinement of cold antihydrogen, $\\overline{\\mathrm{H}}$. An analysis of trapping data allowed a stringent limit to be placed on the electric charge of the simplest antiatom. Charge neutrality of matter is known to a very high precision, hence a neutrality limit of $\\overline{\\mathrm{H}}$ provides a test of CPT invariance. The experimental technique is based on the measurement of the deflection of putatively charged $\\overline{\\mathrm{H}}$ in an electric field. The tendency for trapped $\\overline{\\mathrm{H}}$ atoms t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.08152","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/2107.08152/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"}