{"paper":{"title":"Probing Long-Lived Particle Production in Muon Decays at the SNS with a Highly Capable Hydrocarbon Detector","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"A. B. Balantekin, A. B. Hansell, A. Erickson, A. Galindo-Uribarri, A. Irani, A. J. Conant, A. Lozano Sanchez, A. M. Meyer, B. R. Littlejohn, C. D. Bass, C. D. Bryan, C. E. Lane, C. Grant, C. Roca, D. Norcini, D. Venegas-Vargas, E. P. Bernard, F. Machado, G. Deichert, H. P. Mumm, J. Koblanski, J. Maricic, J. R. Newby, J. Wilhelmi, K. M. Heeger, M. Andriamirado, M. D. Fuller, M. Hostert, M. P. Mendenhall, M. Yeh, N. Craft, N. Patel, N. S. Bowden, O. Benevides Rodrigues, P. E. Mueller, R. Carr, R. Milincic, R. Neilson, R. Rosero, S. Ghosh, S. Gokhale, S. Hans, S. Urrea, T. Classen, T. E. Haugen, X. Zhang","submitted_at":"2026-06-17T17:24:16Z","abstract_excerpt":"The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) is a prolific muon producer, making it an ideal location for studying dark sector particles produced in muon decays at rest. In this paper, we explore sub-GeV dark particle detection possibilities in a tons-scale, highly capable hydrocarbon scintillator ($HC^2$) detector at the SNS. We consider a search for $e^+e^-$ final states produced by decays of long-lived, $O(10-100)$ MeV axion-like particles and heavy neutral leptons. The $HC^2$ technology space, exemplified by the PROSPECT and Mobile Antineutrino Demonstrator d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.19299","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/2606.19299/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"}