{"paper":{"title":"SENSEI: First Direct-Detection Results on sub-GeV Dark Matter from SENSEI at SNOLAB","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","hep-ph","physics.ins-det"],"primary_cat":"astro-ph.CO","authors_text":"Alex Drlica-Wagner, Aman Singal, Ana M. Botti, Ansh Desai, Aviv Orly, Brenda A. Cervantes-Vergara, Dario Rodrigues, Edgar Marrufo Villalpando, Erez Etzion, Guillermo Fernandez Moroni, Gustavo Cancelo, Hailin Xu, Ian Lawson, Itay M. Bloch, Javier Tiffenberg, Jonathan Kehat, Juan Estrada, Kelly Stifter, Leandro Stefanazzi, Mariano Cababie, Michael Crisler, Miguel Daal, Miguel Sofo-Haro, Nathan A. Saffold, Rouven Essig, Santiago E. Perez, SENSEI Collaboration: Prakruth Adari, Sho Uemura, Silvia Scorza, Steffon Luoma, Stephen E. Holland, Tien-Tien Yu, Timon Emken, Tomer Volansky, Yaron Korn, Yikai Wu","submitted_at":"2023-12-20T19:00:00Z","abstract_excerpt":"We present the first results from a dark matter search using six Skipper-CCDs in the SENSEI detector operating at SNOLAB. We employ a bias-mitigation technique of hiding approximately 46% of our total data and aggressively mask images to remove backgrounds. Given a total exposure after masking of 100.72 gram-days from well-performing sensors, we observe 55 two-electron events, 4 three-electron events, and no events containing 4 to 10 electrons. The two-electron events are consistent with pileup from one-electron events. Among the 4 three-electron events, 2 appear in pixels that are likely impa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.13342","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/2312.13342/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"}