{"paper":{"title":"First Constraints from DAMIC-M on Sub-GeV Dark-Matter Particles Interacting with Electrons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ex","authors_text":"A. Dastgheibi-Fard, A.E. Chavarria, A. Lantero-Barreda, A. Letessier-Selvon, A. Lopez-Virto, A. Matalon, A. Piers, B. Kilminster, C. De Dominicis, D. Baxter, D. Norcini, E. Estrada, G. Papadopoulos, G. Warot, I. Arnquist, I. Lawson, I. Vila, J. Cortabitarte Gutierrez, J. Cuevas-Zepeda, J. Duarte-Campderros, J-P. Zopounidis, K. McGuire, K. Ramanathan, L. Iddir, L. Khalil, M. Settimo, M. Traina, N. Avalos, N. Castello-Mor, N. Gadola, O. Deligny, P. Loaiza, P. Mitra, P. Privitera, P. Robmann, R. Ga{\\i}or, R. Smida, R. Thomas, R. Vilar, R. Yajur, S. Lee, S. Munagavalasa, S. Paul, T. Hossbach, X. Bertou","submitted_at":"2023-02-05T12:37:51Z","abstract_excerpt":"We report constraints on sub-GeV dark matter particles interacting with electrons from the first underground operation of DAMIC-M detectors. The search is performed with an integrated exposure of 85.23 g days, and exploits the subelectron charge resolution and low level of dark current of DAMIC-M charge-coupled devices (CCDs). Dark-matter-induced ionization signals above the detector dark current are searched for in CCD pixels with charge up to 7e$^-$. With this dataset we place limits on dark matter particles of mass between 0.53 and 1000 MeV/$c^2$, excluding unexplored regions of parameter s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.02372","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/2302.02372/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"}