{"paper":{"title":"Novel approach to investigate $\\eta$ decays via $\\eta'\\rightarrow\\pi\\pi\\eta$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Benhou Xiang, Haiping Peng, Shuangshi Fang, Xiaolin Kang, Xiaoqing Yuan, Xiaorong Zhou, Xingtao Huang, Yuyao Ji","submitted_at":"2023-06-05T12:04:28Z","abstract_excerpt":"To avoid the impact from the background events directly from $e^+e^-$ annihilations or $J/\\psi$ decays, we propose a novel approach to investigate $\\eta$ decays, in particular for its rare or forbidden decays, by using $\\eta^\\prime\\rightarrow\\pi\\pi\\eta$ produced in $J/\\psi$ decays at the $\\tau-$charm factories. Based on the MC studies of a few typical decays, $\\eta\\rightarrow \\pi\\pi$, $\\gamma l^+l^- (l= e, \\mu)$, $l^+l^-$, as well as $l^+l^-\\pi^0$, the sensitivities could be obviously improved by taking advantage of the extra constraint of $\\eta^\\prime$. Using one trillion $J/\\psi$ events accu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.02810","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/2306.02810/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"}