{"paper":{"title":"Shinning Light on Sterile Neutrino Portal Dark Matter from Cosmology and Collider","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Ang Liu, Feng-Lan Shao, Honglei Li, Yi Jin, Zhi-Long Han","submitted_at":"2022-12-20T07:29:51Z","abstract_excerpt":"Provided the dark sector consisted of a dark scalar $\\phi$ and a dark fermion $\\chi$ under an exact $Z_2$ symmetry, the sterile neutrino $N$ can act as the messenger between the dark sector and standard model via the Yukawa coupling $\\lambda_{ds} \\bar{\\chi}\\phi N$. In this paper, we focus on the specific scenario $m_N>m_\\phi+m_\\chi$ with $\\chi$ being a FIMP dark matter. The decay width of dark scalar $\\phi$ is doubly suppressed by the smallness of Yukawa coupling $\\lambda_{ds}$ and mixing angle $\\theta$. The delayed decay $\\phi\\to\\chi\\nu$ will have a great impact on cosmological observables su"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.10043","kind":"arxiv","version":1},"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/2212.10043/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"}