{"paper":{"title":"Search for Light Dark Matter with NEWS-G at the Laboratoire Souterrain de Modane Using a Methane Target","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"hep-ex","authors_text":"A. Brossard, A. Dastgheibi-Fard, A. Makowski, C. Beaufort, C. Garrah, D. Durnford, D. Santos, D. Spathara, E. C. Corcoran, E. W. Hoppe, F. Kelly, F. Vazquez de Sola Fernandez, G. Gerbier, G. Giroux, G. Savvidis, H. Meadows, H. M. McCallum, I. Giomataris, I. Katsioulas, I. Manthos, I. Savvidis, J. Clarke, J.-F. Muraz, J. Matthews, J.-M. Coquillat, K. Nikolopoulos, L. Balogh, L. Millins, M. Chapellier, M.-C. Piro, M. Gros, M. M. Arora, N. Panchal, N. Rowe, O. Guillaudin, P. Gorel, P. Gros, P. Knights, P. Lautridou, R. D. Martin, R. Ward, T. Neep, Y. Deng","submitted_at":"2024-07-17T17:50:02Z","abstract_excerpt":"The NEWS-G direct detection experiment uses spherical proportional counters to search for light dark matter candidates. New results from a 10 day physics run with a $135\\,\\mathrm{cm}$ in diameter spherical proportional counter at the Laboratoire Souterrain de Modane are reported. The target consists of $114\\,\\mathrm{g}$ of methane, providing sensitivity to dark matter spin-dependent coupling to protons. New constraints are presented in the mass range $0.17$ to $1.2\\,\\mathrm{GeV/c^2}$, with a 90% confidence level cross-section upper limit of $30.9\\,\\mathrm{pb}$ for a mass of $0.76\\,\\mathrm{GeV/"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.12769","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/2407.12769/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"}