{"paper":{"title":"Weak decays of the axial-vector tetraquark $T_{bb;\\bar{u} \\bar{d}}^{-}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-lat"],"primary_cat":"hep-ph","authors_text":"B. Barsbay, H. Sundu, K. Azizi, S. S. Agaev","submitted_at":"2018-09-20T18:31:50Z","abstract_excerpt":"The weak decays of the axial-vector tetraquark $T_{bb;\\bar{u} \\bar{d}}^{-}$ to the scalar state $Z_{bc;\\bar{u} \\bar{d}}^{0}$ are investigated using the QCD three-point sum rule approach. In order to explore the process $T_{bb; \\bar{u} \\bar{d}}^{-} \\to Z_{bc;\\bar{u} \\bar{d}}^{0}l \\bar{\\nu_l}$, we recalculate the spectroscopic parameters of the tetraquark $T_{bb;\\bar{u} \\bar{d}}^{-}$ and find the mass and coupling of the scalar four-quark system $Z_{bc;\\bar{u} \\bar{d}}^{0}$, which are important ingredients of calculations. The spectroscopic parameters of these tetraquarks are computed in the fra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.07791","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}