{"paper":{"title":"FIMPs in a two-component dark matter model with $Z_2 \\times Z_4$ symmetry","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Hao Sun, XinXin Qi","submitted_at":"2026-02-09T07:49:00Z","abstract_excerpt":"We study the freeze-in production of a two-component dark matter model with $Z_2\\times Z_4$ symmetry where a singlet scalar $S$ and a Majorana fermion $\\chi$ are the DM candidates. A singlet scalar $S_0$ with a non-zero vev $v_0$ generates $\\chi$'s mass after spontaneous symmetry breaking. We choose six free parameters with the Higgs mixing angle fixed at $\\sin\\theta=10^{-4}$ in this work. Depending on whether $m_\\chi$ and $m_S$ lie above or below $m_2/2$, with $m_2$ being the new Higgs $h_2$ mass, we have four phenomenological cases with distinct production channels. For $m_2=1$~TeV, we deter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.08359","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/2602.08359/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"}