{"paper":{"title":"Disclosing $D^*\\bar{D}^*$ molecular states in the $B_c^- \\to \\pi^- J/\\psi \\omega$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"E.Oset, J.M.Dias, L.R.Dai","submitted_at":"2018-01-22T13:44:52Z","abstract_excerpt":"We study the $B_c^- \\to \\pi^- J/\\psi \\omega$ and $B_c^- \\to \\pi^- D^* \\bar{D}^*$ reactions and show that they are related by the presence of two resonances, the $X(3940)$ and $X(3930)$, that are of molecular nature and couple most strongly to $D^* \\bar{D}^*$, but also to $J/\\psi\\omega$. Because of that, in the $J/\\psi\\omega$ mass distribution we find a cusp with large strength at the $D^* \\bar{D}^*$ threshold and predict the ratio of strengths between the peak of the cusp and the maximum of the $D^* \\bar{D}^*$ distribution close to $D^* \\bar{D}^*$ threshold, which are distinct features of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.07091","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":""},"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"}