{"paper":{"title":"A new life for sterile neutrino dark matter after the pandemic","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"J\\\"orn Kersten, Joshua T. Ruderman, Kai Schmidt-Hoberg, Marco Hufnagel, Paul Frederik Depta, Torsten Bringmann","submitted_at":"2022-06-21T18:00:01Z","abstract_excerpt":"We propose a novel mechanism to generate sterile neutrinos $\\nu_s$ in the early Universe, by converting ordinary neutrinos $\\nu_\\alpha$ in scattering processes $\\nu_s\\nu_\\alpha\\to\\nu_s\\nu_s$. After initial production by oscillations, this leads to an exponential growth in the $\\nu_s$ abundance. We show that such a production regime naturally occurs for self-interacting $\\nu_s$, and that this opens up significant new parameter space where $\\nu_s$ make up all of the observed dark matter. Our results provide strong motivation to further push the sensitivity of X-ray line searches, and to improve "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.10630","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/2206.10630/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"}