{"paper":{"title":"Light $Z^\\prime$ and Dirac fermion dark matter in the $B-L$ model","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Digesh Raut, Newton Nath, Nobuchika Okada, Qaisar Shafi, Satomi Okada","submitted_at":"2021-12-16T15:23:56Z","abstract_excerpt":"We consider a $U(1)_{B-L}$ model with a $Z^\\prime$ portal Dirac fermion dark matter (DM) $\\chi$ of low mass which couples very weakly to the $B - L$ gauge boson $Z^\\prime$. An arbitrary $B-L$ charge $Q\\neq \\pm1, \\pm 3$ of the DM $\\chi$ ensures its stability. Motivated by the sensitivity reach of forthcoming \"Lifetime Frontier\" experiments, we focus on the $Z^\\prime$ mass, $m_{Z^\\prime}$, in the sub-GeV to few GeV range. To evaluate the DM relic abundance, we examine both the freeze-out and freeze-in DM scenarios. For the freeze-out scenario, we show that the observed DM abundance is reproduced"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.08960","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/2112.08960/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"}