{"paper":{"title":"Imprint of the adjoint meson spectrum in the decay patterns of hidden-bottom tetraquarks","license":"http://creativecommons.org/licenses/by/4.0/","headline":"The decay patterns of hidden-bottom tetraquarks Z_b and Z_b' reflect the degeneracy of the 1-- and 0-+ adjoint mesons within the Born-Oppenheimer Effective Field Theory.","cross_cats":["hep-ex","hep-ph","nucl-th"],"primary_cat":"hep-lat","authors_text":"Francesco Knechtli, Juan Andr\\'es Urrea-Ni\\~no, Michael Peardon, Nora Brambilla, Sipaz Sharma","submitted_at":"2026-03-31T11:03:17Z","abstract_excerpt":"We aim to clarify the experimentally observed near-degeneracy and decay patterns of the isospin, $I=1$, hidden-bottom tetraquarks $Z_b(10610)$ and $Z_b(10650)$ with quantum numbers $J^{P}=1^{+}$.We refer to them as $Z_b$ and $Z_b^{'}$, respectively. In particular, we find first evidence that the suppression of the decay of $Z_b^{'}$ to $B\\bar{B^*}$ can be understood in the context of the Born-Oppenheimer Effective Field Theory (BOEFT). BOEFT enables writing both $Z_b$ and $Z_b^{'}$ as superpositions of $Z_1$ and $Z_2$ tetraquark configurations. This decomposition naturally relates the decay pa"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We find first evidence that the suppression of the decay of Z_b' to B B* can be understood in the context of the Born-Oppenheimer Effective Field Theory (BOEFT) by relating the decay patterns to the degeneracy of the 1-- and 0-+ adjoint mesons.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That the Z_b and Z_b' states can be written as superpositions of Z1 and Z2 tetraquark configurations whose associated light degrees of freedom are precisely the 1-- and 0-+ adjoint mesons whose degeneracy is checked by the lattice calculation.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Lattice QCD calculations indicate degeneracy of 1-- and 0-+ adjoint mesons, supporting a BOEFT explanation for the observed decay suppression in Z_b' relative to Z_b.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"The decay patterns of hidden-bottom tetraquarks Z_b and Z_b' reflect the degeneracy of the 1-- and 0-+ adjoint mesons within the Born-Oppenheimer Effective Field Theory.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"38a3917b9fc2fb7b5d1e0e12a321d21d4e070301f99277d154ebfe48374e4eb0"},"source":{"id":"2603.29581","kind":"arxiv","version":2},"verdict":{"id":"a1a2cf5a-9ce0-49da-ae78-e528bb2a374a","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T18:14:22.582566Z","strongest_claim":"We find first evidence that the suppression of the decay of Z_b' to B B* can be understood in the context of the Born-Oppenheimer Effective Field Theory (BOEFT) by relating the decay patterns to the degeneracy of the 1-- and 0-+ adjoint mesons.","one_line_summary":"Lattice QCD calculations indicate degeneracy of 1-- and 0-+ adjoint mesons, supporting a BOEFT explanation for the observed decay suppression in Z_b' relative to Z_b.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the Z_b and Z_b' states can be written as superpositions of Z1 and Z2 tetraquark configurations whose associated light degrees of freedom are precisely the 1-- and 0-+ adjoint mesons whose degeneracy is checked by the lattice calculation.","pith_extraction_headline":"The decay patterns of hidden-bottom tetraquarks Z_b and Z_b' reflect the degeneracy of the 1-- and 0-+ adjoint mesons within the Born-Oppenheimer Effective Field Theory."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.29581/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":28,"sample":[{"doi":"","year":2003,"title":"S. K. Choi et al. Observation of a narrow charmonium-like state in exclusive𝐵 ± → 𝐾 ±𝜋+𝜋− 𝐽/𝜓decays.Phys. Rev. Lett., 91:262001, 2003","work_id":"4da7189b-3127-447f-a70e-29fc9c12a95b","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2012,"title":"Bondar et al","work_id":"8870f8d4-b0f7-48c3-a8db-7f2b9bef76db","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2015,"title":"Garmash et al","work_id":"bb8ad98f-2753-4c45-bdee-56fb4bbe118d","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2026,"title":"Exotic hadrons associated with𝑏-quark","work_id":"158f08d8-2833-4a3c-af0a-e101bbe2ebd3","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2020,"title":"Thomas, Antonio Vairo, and Chang-Zheng Yuan","work_id":"2642290f-2ae4-4ea3-88ff-afd3ae7777c2","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":28,"snapshot_sha256":"e1fec2ce318a6e672df76526df9fe9d55fa955aab36df119a9358939ebe6d96f","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"b3f0d5c9884c7e13971e8332fe9e26a0ea76693cdd1ad1bcfd030951a4882e31"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}