{"paper":{"title":"Testing the universality of free fall towards dark matter with radio pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","hep-ph"],"primary_cat":"gr-qc","authors_text":"Lijing Shao, Michael Kramer, Norbert Wex","submitted_at":"2018-05-22T05:57:05Z","abstract_excerpt":"The violation of the weak equivalence principle (EP) in the gravitational field of the Earth, described by the E\\\"otv\\\"os parameter $\\eta_\\oplus$, was recently constrained to the level $\\left|\\eta_\\oplus\\right| \\lesssim 10^{-14}$ by the MICROSCOPE space mission. The E\\\"otv\\\"os parameter $\\eta_{\\rm DM}$, pertaining to the differential couplings of dark matter (DM) and ordinary matter, was only tested to the level $\\left| \\eta_{\\rm DM} \\right| \\lesssim 10^{-5}$ by the E\\\"ot-Wash group and lunar laser ranging. This test is limited by the EP-violating driving force in the Solar neighborhood that i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.08408","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"}