{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:QN2CQHA34QTKMQEMLKZLWJFK2D","short_pith_number":"pith:QN2CQHA3","schema_version":"1.0","canonical_sha256":"8374281c1be426a6408c5ab2bb24aad0df2d08a98fce24f302279b62fc2892e5","source":{"kind":"arxiv","id":"hep-ex/0402025","version":1},"attestation_state":"computed","paper":{"title":"Observation of the Decay B=> J/psi eta K and Search for X(3872)=> J/psi eta","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"B. Aubert, et al. (for the BABAR Collaboration)","submitted_at":"2004-02-13T17:39:43Z","abstract_excerpt":"We report the observation of the $B$ meson decay $B^\\pm\\to J/\\psi \\eta K^\\pm$ and evidence for the decay $B^0\\to J/\\psi \\eta K^0_S$, using {90} million $BBbar$ events collected at the $\\ensuremath{\\Upsilon{(4S)}}\\xspace$ resonance with the $BaBar$ detector at the PEP-II $e^+ e^-$ asymmetric-energy storage ring. We obtain branching fractions of $\\cal{B}$$(B^\\pm\\to J/\\psi \\eta K^{\\pm}$)=$(10.8\\pm 2.3(\\rm{stat.})\\pm 2.4(\\rm{syst.}))\\times 10^{-5}$ and $\\cal{B}$$(B^0\\to J/\\psi\\eta K_{\\rm{S}}^{0}$)=$(8.4\\pm 2.6(\\rm{stat.})\\pm 2.7(\\rm{syst.}))\\times 10^{-5}$. We search for the new narrow mass state,"},"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":"hep-ex/0402025","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2004-02-13T17:39:43Z","cross_cats_sorted":[],"title_canon_sha256":"5e232e290b1cd4305c9e1e9ff302f7688808bd6371dfeb3e8c54e2ea1e29029a","abstract_canon_sha256":"6d5c01d5588be9e09560e667ec7104aeeb8c9a9e7fb6af2d92f59b1ad96cae31"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:54:19.129031Z","signature_b64":"xmawD+VJJiUcL0EhFBqTRhgfrH8Kr/kiQMgqUo2TN402Fsr4g6cY8MbTQz3Uy+rLXmgE5EP6CypMeoZWm1SfBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8374281c1be426a6408c5ab2bb24aad0df2d08a98fce24f302279b62fc2892e5","last_reissued_at":"2026-07-04T23:54:19.128616Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:54:19.128616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observation of the Decay B=> J/psi eta K and Search for X(3872)=> J/psi eta","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"B. Aubert, et al. (for the BABAR Collaboration)","submitted_at":"2004-02-13T17:39:43Z","abstract_excerpt":"We report the observation of the $B$ meson decay $B^\\pm\\to J/\\psi \\eta K^\\pm$ and evidence for the decay $B^0\\to J/\\psi \\eta K^0_S$, using {90} million $BBbar$ events collected at the $\\ensuremath{\\Upsilon{(4S)}}\\xspace$ resonance with the $BaBar$ detector at the PEP-II $e^+ e^-$ asymmetric-energy storage ring. We obtain branching fractions of $\\cal{B}$$(B^\\pm\\to J/\\psi \\eta K^{\\pm}$)=$(10.8\\pm 2.3(\\rm{stat.})\\pm 2.4(\\rm{syst.}))\\times 10^{-5}$ and $\\cal{B}$$(B^0\\to J/\\psi\\eta K_{\\rm{S}}^{0}$)=$(8.4\\pm 2.6(\\rm{stat.})\\pm 2.7(\\rm{syst.}))\\times 10^{-5}$. We search for the new narrow mass state,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0402025","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/hep-ex/0402025/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"hep-ex/0402025","created_at":"2026-07-04T23:54:19.128672+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ex/0402025v1","created_at":"2026-07-04T23:54:19.128672+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ex/0402025","created_at":"2026-07-04T23:54:19.128672+00:00"},{"alias_kind":"pith_short_12","alias_value":"QN2CQHA34QTK","created_at":"2026-07-04T23:54:19.128672+00:00"},{"alias_kind":"pith_short_16","alias_value":"QN2CQHA34QTKMQEM","created_at":"2026-07-04T23:54:19.128672+00:00"},{"alias_kind":"pith_short_8","alias_value":"QN2CQHA3","created_at":"2026-07-04T23:54:19.128672+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.29560","citing_title":"Probing the structure of $\\chi_{c1}(3872)$: Heavy quark symmetries at work","ref_index":6,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D","json":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D.json","graph_json":"https://pith.science/api/pith-number/QN2CQHA34QTKMQEMLKZLWJFK2D/graph.json","events_json":"https://pith.science/api/pith-number/QN2CQHA34QTKMQEMLKZLWJFK2D/events.json","paper":"https://pith.science/paper/QN2CQHA3"},"agent_actions":{"view_html":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D","download_json":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D.json","view_paper":"https://pith.science/paper/QN2CQHA3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ex/0402025&json=true","fetch_graph":"https://pith.science/api/pith-number/QN2CQHA34QTKMQEMLKZLWJFK2D/graph.json","fetch_events":"https://pith.science/api/pith-number/QN2CQHA34QTKMQEMLKZLWJFK2D/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D/action/storage_attestation","attest_author":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D/action/author_attestation","sign_citation":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D/action/citation_signature","submit_replication":"https://pith.science/pith/QN2CQHA34QTKMQEMLKZLWJFK2D/action/replication_record"}},"created_at":"2026-07-04T23:54:19.128672+00:00","updated_at":"2026-07-04T23:54:19.128672+00:00"}