{"paper":{"title":"Experimental Advances on Light Baryon Spectroscopy at BESIII Experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"BESIII data has revealed multiple new excited states of light baryons including nucleons and various hyperons.","cross_cats":[],"primary_cat":"hep-ex","authors_text":"Hao Liu, Shi Wang, Shuangshi Fang, Xiongfei Wang","submitted_at":"2026-03-04T14:54:03Z","abstract_excerpt":"The BESIII experiment is currently the world's only electron-positron collider operating in the tau-charm physical energy region. Since starting data taking in 2009, BESIII has accumulated the world's largest data set in the center-of-mass energy range of 1.84-4.95 GeV, including approximately 10 billion $J/\\psi$ events and 3 billion $\\psi(3686)$ events, together with extensive data on open-charm hadron pair production near threshold regions. These unique datasets, characterized by high statistics and low background, provide unprecedented experimental conditions for studying light baryon spect"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"These results expand the spectrum of baryon excited states and provide crucial experimental support for understanding non-perturbative QCD and resolving the ``missing baryon resonances'' problem.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The observed peaks in mass spectra are interpreted as genuine new resonance states rather than background fluctuations, interference effects, or misidentified known states.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"BESIII reports discoveries of multiple new excited light baryon states from high-statistics data, expanding the known spectrum and supporting non-perturbative QCD studies.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"BESIII data has revealed multiple new excited states of light baryons including nucleons and various hyperons.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"7c7c803cc2e7da82be31c6145db6489f4f129a4b41b669e5d3afece7c61c79c5"},"source":{"id":"2603.04141","kind":"arxiv","version":2},"verdict":{"id":"0a547159-99f9-4b4a-824f-62257ff184c4","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T16:51:48.428110Z","strongest_claim":"These results expand the spectrum of baryon excited states and provide crucial experimental support for understanding non-perturbative QCD and resolving the ``missing baryon resonances'' problem.","one_line_summary":"BESIII reports discoveries of multiple new excited light baryon states from high-statistics data, expanding the known spectrum and supporting non-perturbative QCD studies.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The observed peaks in mass spectra are interpreted as genuine new resonance states rather than background fluctuations, interference effects, or misidentified known states.","pith_extraction_headline":"BESIII data has revealed multiple new excited states of light baryons including nucleons and various hyperons."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.04141/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":"30a835031f5c5b8fd82991931d80839f8524b32a56ba0b819c3000a73dc367b6"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}