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The following branching fractions are obtained: Br(B0->J/Psi rho0)=(2.8+-0.3+-0.3)*10^{-5}, Br(B0->J/Psi f2)<1.5*10^{-5}(at 90% C.L.) and Br(B0->J/Psi (pi+pi-)non-res.)<1.5*10^{-5}(at 90% C.L.)."},"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/0408107","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ex","submitted_at":"2004-08-23T03:29:55Z","cross_cats_sorted":[],"title_canon_sha256":"3a0a00676a388b90cd71cf1824f48687bbc69894187cfd23aa4e42cafbb54410","abstract_canon_sha256":"fcd963096d01dc55f974908d565dc9c40f7e092fe9c9bd728ba91b1b084148d1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:54:19.974915Z","signature_b64":"/yB5IXLASqfJLVwYU3jS0+YhL6IjbBt24N92iBGzOq89Bg4pT5CxO4d4XcF1NA63tzkVAm2GkF6O5jlduitxDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dccd2c5cc0a1a8ba4c05e564de236a5090be692075c469c6a94bb83d79ee4f5c","last_reissued_at":"2026-07-04T23:54:19.974496Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:54:19.974496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of Branching Fractions in B0 -> J/Psi pi+pi- Decay","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al. 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