{"paper":{"title":"Signature of an $h_1$ state in the $J/\\psi \\to \\eta h_1 \\to \\eta K^{*0}\\bar{K}^{*0}$ decay","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"E. Oset, Ju-Jun Xie, M. Albaladejo","submitted_at":"2013-06-27T18:20:26Z","abstract_excerpt":"The BES data on the $J/\\psi \\to \\eta K^{*0}\\bar{K}^{*0}$ reaction show a clear enhancement in the $K^{*0}\\bar{K}^{*0}$ mass distribution close to the threshold of this channel. Such an enhancement is usually a signature of a L=0 resonance around threshold, which in this case would correspond to an $h_1$ state with quantum numbers $I^G(J^{PC})=0^-(1^{+-})$. A state around $1800\\ \\text{MeV}$ results from the interaction of the $K^* \\bar{K}^*$ using the local hidden gauge approach. We show that the peak observed in $J/\\psi \\to \\eta K^{*0}\\bar{K}^{*0}$ naturally comes from the creation of this $h_"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.6594","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"}