{"paper":{"title":"Measurements of the absolute branching fractions of $D^0\\to\\gamma \\bar K^{*0}$ and $D^0\\to\\gamma \\phi$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"BESIII Collaboration","submitted_at":"2026-05-21T16:13:51Z","abstract_excerpt":"By analyzing a sample of 20.3 fb$^{-1}$ of $e^+e^-$ annihilation data collected at the center-of-mass energy of 3.773~GeV with the BESIII detector, we have made a first measurement of the absolute branching fractions of the radiative decays $D^0\\to\\gamma \\bar K^{*0}$ and $D^0\\to\\gamma\\phi$ to be $(3.81 \\pm 0.18_{\\rm stat.} \\pm 0.20_{\\rm syst.})\\times 10^{-4}$ and $(2.51 \\pm 0.44_{\\rm stat.} \\pm 0.11_{\\rm syst.})\\times 10^{-5}$, respectively.\n  The statistical significances of $D^0\\to\\gamma \\bar K^{*0}$ and $D^0\\to\\gamma \\phi$ are $26.8\\sigma$ and $7.9\\sigma$, respectively. The obtained branchi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.22670","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/2605.22670/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"}