{"paper":{"title":"Radiative Decays of Vector Mesons with Light-Cone Sum Rules","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Radiative decay widths of vector mesons follow a universal linear dependence on A(x) in logarithmic coordinates.","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"Di Gao, Kai Kai Zhang, Yan Jun Sun, Yuan Yuan Ma, Zhi Jun Wang","submitted_at":"2025-11-17T05:38:47Z","abstract_excerpt":"Hadronic electromagnetic form factors and radiative decay properties offer a crucial window into the nonperturbative dynamics of Quantum chromodynamics (QCD). In this work, we employ the light-cone sum rules (LCSR) method to systematically investigate the M1 radiative decay of vector mesons. Our study covers processes including $K^{*-}\\rightarrow K^-\\gamma$, $D^*\\rightarrow D\\gamma$, $B^*\\rightarrow B\\gamma$, $D^{*+}_s\\rightarrow D^+_s\\gamma$, and $B_s^*\\rightarrow B_s\\gamma$, and further extends to the excited charmonium state $\\psi(2S)$. Our calculations yield decay widths for $K^*$ and $\\ps"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Our analysis reveals a universal linear dependence of the decay width on a function A(x) in the logarithmic coordinate system, which originates from the two-body decay dynamics and the ratio of the initial and final state decay constants. This relationship holds for the ground state V → P γ processes here and suggests a broader applicability to radiative decays of ground-state vector mesons.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The light-cone sum rules framework and its input parameters (Borel mass, continuum thresholds, and distribution amplitudes) are assumed to be sufficiently accurate and stable for both light and heavy-flavor mesons, with no significant higher-order corrections or unaccounted systematic effects altering the extracted widths or the observed linear pattern.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Light-cone sum rules yield radiative decay widths for ground-state vector mesons that match data where available and exhibit a universal linear dependence on a function A(x) in log coordinates arising from decay-constant ratios and two-body phase space.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Radiative decay widths of vector mesons follow a universal linear dependence on A(x) in logarithmic coordinates.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"fb3b21ecf92ab8fc776533465cd8cad101c2743c78701072a107327d72c55ef4"},"source":{"id":"2511.12996","kind":"arxiv","version":4},"verdict":{"id":"4d3560b2-d5f4-4b0a-ab8d-2c0bcfc78b39","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-17T22:48:47.159819Z","strongest_claim":"Our analysis reveals a universal linear dependence of the decay width on a function A(x) in the logarithmic coordinate system, which originates from the two-body decay dynamics and the ratio of the initial and final state decay constants. This relationship holds for the ground state V → P γ processes here and suggests a broader applicability to radiative decays of ground-state vector mesons.","one_line_summary":"Light-cone sum rules yield radiative decay widths for ground-state vector mesons that match data where available and exhibit a universal linear dependence on a function A(x) in log coordinates arising from decay-constant ratios and two-body phase space.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The light-cone sum rules framework and its input parameters (Borel mass, continuum thresholds, and distribution amplitudes) are assumed to be sufficiently accurate and stable for both light and heavy-flavor mesons, with no significant higher-order corrections or unaccounted systematic effects altering the extracted widths or the observed linear pattern.","pith_extraction_headline":"Radiative decay widths of vector mesons follow a universal linear dependence on A(x) in logarithmic coordinates."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2511.12996/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":2,"snapshot_sha256":"59aa38a5e75e492eb96e23794b0bbcafba385f108ea7a326835b8a56ab1ddae6"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}