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The selected signal event sample is further used to search for the $\\mPY$ resonance through $\\mPJpsi \\to \\mPeta \\mPY, \\mPY\\to\\mPKst\\mAPKst$. No evidence of a signal is seen. An upper limit of \\mathrm{Br}(\\mPJpsi \\to \\mPeta \\mPY)\\cdot\\mathrm{Br}(\\mPY\\to\\mPKst\\mAPKst) < 2.52\\times 10^{-4} is set at the 90% confidence level."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0909.2087","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2009-09-11T05:34:23Z","cross_cats_sorted":[],"title_canon_sha256":"a106fec68cb7ee65c863d86da885953d9f2e2e049bb9dbad8b3173651b934bde","abstract_canon_sha256":"19e07e412c6372e861ceb8f084a947e1e1cb20b9c5af0bab0a8ae3adc2482d0a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:22:03.331934Z","signature_b64":"JT9SDS8tJslMOi6Ci+zVve32Es/aUOfFOvQAqu3Nm52hvdesq01a+/0Xpl/+PkFf12NoX+9XVmWRo/VdDF4IBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63411165bafa0287e7773637bd9891697f647b413c3c6bebc5cce82771ffe290","last_reissued_at":"2026-07-04T17:22:03.331522Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:22:03.331522Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Study of J/Psi decays into eta Kstar Kstar-bar","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al, The BES Collaboration: M. 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