{"paper":{"title":"The pole structures of the $X(1840)/X(1835)$ and the $X(1880)$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Peng-Yu Niu, Qiang Zhao, Qian Wang, Yi-Yao Li, Zhen-Yu Zhang","submitted_at":"2024-08-27T08:44:39Z","abstract_excerpt":"Whether the $N\\bar{N}$ interaction could form a state or not is a long standing question, even before the observation of the $p\\bar{p}$ threshold enhancement in 2003. The recent high statistic measurement in the $J/\\psi \\to \\gamma 3(\\pi^+\\pi^-)$ channel would provide a good opportunity to probe the nature of the peak structures around the $p\\bar{p}$ threshold in various processes. By constructing the $N\\bar{N}$ interaction respecting chiral symmetry, we extract the pole positions by fitting the $p\\bar{p}$ and $3(\\pi^+\\pi^-)$ invariant mass distributions of the $J/\\psi \\to \\gamma p \\bar p$ and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.14876","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2408.14876/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}