{"paper":{"title":"Substructure of Multiquark Hadrons (Snowmass 2021 White Paper)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Adam P. Szczepaniak, Alessandro Pilloni, Angelo Esposito, Anthony Francis, Antonio Davide Polosa, Atsushi Hosaka, Bing-Song Zou, Christoph Hanhart, Elena Santopinto, Eric S. Swanson, Feng-Kun Guo, Frank Wilczek, Hua-Xing Chen, Jacopo Ferretti, Jean-Marc Richard, Jonathan L. Rosner, Luciano Maiani, Makoto Takizawa, Marek Karliner, Mitja Rosina, Nilmani Mathur, Nora Brambilla, Randy Lewis, Richard Lebed, Robert L. Jaffe, Sachiko Takeuchi, Sasa Prelovsek, Ulf-G. Mei{\\ss}ner, Veronica Riquer, Yasuhiro Yamaguchi","submitted_at":"2022-03-30T18:14:13Z","abstract_excerpt":"In recent years there has been a rapidly growing body of experimental evidence for existence of exotic, multiquark hadrons, i.e. mesons which contain additional quarks, beyond the usual quark-antiquark pair and baryons which consist of more than three quarks. In all cases with robust evidence they contain at least one heavy quark Q=c or b, the majority including two heavy quarks. Two key theoretical questions have been triggered by these discoveries: (a) how are quarks organized inside these multiquark states -- as compact objects with all quarks within one confinement volume, interacting via "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.16583","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/2203.16583/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"}