{"paper":{"title":"CMB Test of the Higgs Origin of Dark-Photon Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Chengxun Yuan, Farruh Atamurotov, G. Mustafa, Imtiaz Khan, Salvatore Capozziello","submitted_at":"2026-06-28T04:50:56Z","abstract_excerpt":"Existing laboratory, astrophysical, and direct-detection searches constrain the kinetic-mixing portal $\\epsilon$ of dark-photon dark matter but do not determine the cosmological origin of the relic abundance. We show that cosmic microwave background (CMB) isocurvature provides an independent probe of Higgsed dark-photon production histories: two models with identical $(m_{\\Ap},\\epsilon)$ and identical present-day abundance can produce distinct cold-dark-matter (CDM) isocurvature signatures if their hidden-scalar evolution differs. The relevant observable is the logarithmic response of the fina"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.29197","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/2606.29197/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"}