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Using the measured absolute BF of Jpsi->gamma eta, the absolute BFs of four dominant eta decay modes are measured for the first time. The results are B(Jpsi->gamma eta) = (1.067+-0.005+-0.023)x10^-3, B(eta->gamma gamma) = (39.86+-0.04+-0.99)%, B(eta->pi0pi0pi0) = (31.96+-0.07+-0.84)%, B(eta->pi+pi-pi0) = (23.04+-0.03+-"},"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":"2109.12812","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2021-09-27T05:57:55Z","cross_cats_sorted":[],"title_canon_sha256":"35b4afcf4ef38b1f5aefb467f0e9361004fa6ba3fba8631c39a8d98d04bca765","abstract_canon_sha256":"bda4305e40ac63165fd1cf940c32e9b43fcb864db6f902c3bd8cf2c7fde3cf7c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:08:02.363281Z","signature_b64":"yXEk3q6pyzmdK8uzHqwiUmuYoPtVAzqoFV3HcTK3Pw58kvC5RXHfAN3wmNiFFEa/ai2cHTpfYCKM69TFsxbWDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"67fb8d6c41b190bc405d825dd42d0ea36a2c97b8d8b5a3f1011121118e6f525c","last_reissued_at":"2026-07-05T06:08:02.362949Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:08:02.362949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of the absolute branching fractions of Jpsi to gamma eta and eta decay modes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"BESIII Collaboration","submitted_at":"2021-09-27T05:57:55Z","abstract_excerpt":"Based on a data sample of (1.0087+-0.0044)x10^10 Jpsi events collected by the BESIII detector at the BEPCII accelerator, the absolute branching fraction (BF) of the decay Jpsi->gamma eta is measured with high precision using events in which the radiative photon converts to e+e-. Using the measured absolute BF of Jpsi->gamma eta, the absolute BFs of four dominant eta decay modes are measured for the first time. 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