{"paper":{"title":"Mass spectra for $qc\\bar q\\bar c$, $sc\\bar s\\bar c$, $qb\\bar q\\bar b$, $sb\\bar s\\bar b$ tetraquark states with $J^{PC}=0^{++}$ and $2^{++}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Hua-Xing Chen, Shi-Lin Zhu, T. G. Steele, Wei Chen, Xiang Liu","submitted_at":"2017-06-29T13:00:46Z","abstract_excerpt":"We have studied the mass spectra of the hidden-charm/bottom $qc\\bar q\\bar c$, $sc\\bar s\\bar c$ and $qb\\bar q\\bar b$, $sb\\bar s\\bar b$ tetraquark states with $J^{PC}=0^{++}$ and $2^{++}$ in the framework of QCD sum rules. We construct ten scalar and four tensor interpolating currents in a systematic way and calculate the mass spectra for these tetraquark states. The $X^\\ast(3860)$ may be either an isoscalar tetraquark state or $\\chi_{c0}(2P)$. If the $X^\\ast(3860)$ is a tetraquark candidate, our results prefer the $0^{++}$ option over the $2^{++}$ one. The $X(4160)$ may be classified as either "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.09731","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"}