{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:RH7LE3Z4IA5EXW7YQCMDTHNFFW","short_pith_number":"pith:RH7LE3Z4","schema_version":"1.0","canonical_sha256":"89feb26f3c403a4bdbf88098399da52daea5c77edcdc3ec7935c01b96b5535e5","source":{"kind":"arxiv","id":"1601.03632","version":3},"attestation_state":"computed","paper":{"title":"Revisiting the $B^{0} \\to \\pi^{0}\\pi^{0} $ decays in the perturbative QCD approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Xian-Qiao Yu, Yun-Feng Li","submitted_at":"2016-01-13T10:06:01Z","abstract_excerpt":"We recalculate the branching ratio and CP asymmetry for $\\bar{B}^{0} (B^{0})\\to \\pi^{0}\\pi^{0}$ decays in the Perturbative QCD approach. In this approach, we consider all the possible diagrams including non-factorizable contributions and annihilation contributions. We obtain $Br(\\bar{B}^{0} (B^{0})\\to \\pi^{0}\\pi^{0})=(1.17_{-0.12}^{+0.11})\\times 10^{-6}$. Our result is in agreement with the latest measured branching ratio of $B^{0}\\to\\pi^{0}\\pi^{0}$ by the Belle and HFAG Collaborations. We also predict large direct CP asymmetry and mixing CP asymmetry in $B^{0}\\to\\pi^{0}\\pi^{0}$ decays, which "},"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":"1601.03632","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2016-01-13T10:06:01Z","cross_cats_sorted":[],"title_canon_sha256":"7a10f7aa95dd99b033baa12863c8c40f9866a944241ee99b92162521f415688e","abstract_canon_sha256":"9651941e0b382f70ecbb3f455e3733db9a473fc0827a926376ab7cf5cea81ee0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:42.584086Z","signature_b64":"5pJlqc6z/w4qst8Ny09+qfWonO8mR/1KProNf3iuzRLDU8jLSqZzaSlj1lW3Zi9Fq05h1IVAucoky+S1/9XzBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"89feb26f3c403a4bdbf88098399da52daea5c77edcdc3ec7935c01b96b5535e5","last_reissued_at":"2026-05-18T00:49:42.583605Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:42.583605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Revisiting the $B^{0} \\to \\pi^{0}\\pi^{0} $ decays in the perturbative QCD approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Xian-Qiao Yu, Yun-Feng Li","submitted_at":"2016-01-13T10:06:01Z","abstract_excerpt":"We recalculate the branching ratio and CP asymmetry for $\\bar{B}^{0} (B^{0})\\to \\pi^{0}\\pi^{0}$ decays in the Perturbative QCD approach. In this approach, we consider all the possible diagrams including non-factorizable contributions and annihilation contributions. We obtain $Br(\\bar{B}^{0} (B^{0})\\to \\pi^{0}\\pi^{0})=(1.17_{-0.12}^{+0.11})\\times 10^{-6}$. Our result is in agreement with the latest measured branching ratio of $B^{0}\\to\\pi^{0}\\pi^{0}$ by the Belle and HFAG Collaborations. We also predict large direct CP asymmetry and mixing CP asymmetry in $B^{0}\\to\\pi^{0}\\pi^{0}$ decays, which "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.03632","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1601.03632","created_at":"2026-05-18T00:49:42.583675+00:00"},{"alias_kind":"arxiv_version","alias_value":"1601.03632v3","created_at":"2026-05-18T00:49:42.583675+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.03632","created_at":"2026-05-18T00:49:42.583675+00:00"},{"alias_kind":"pith_short_12","alias_value":"RH7LE3Z4IA5E","created_at":"2026-05-18T12:30:41.710351+00:00"},{"alias_kind":"pith_short_16","alias_value":"RH7LE3Z4IA5EXW7Y","created_at":"2026-05-18T12:30:41.710351+00:00"},{"alias_kind":"pith_short_8","alias_value":"RH7LE3Z4","created_at":"2026-05-18T12:30:41.710351+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW","json":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW.json","graph_json":"https://pith.science/api/pith-number/RH7LE3Z4IA5EXW7YQCMDTHNFFW/graph.json","events_json":"https://pith.science/api/pith-number/RH7LE3Z4IA5EXW7YQCMDTHNFFW/events.json","paper":"https://pith.science/paper/RH7LE3Z4"},"agent_actions":{"view_html":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW","download_json":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW.json","view_paper":"https://pith.science/paper/RH7LE3Z4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1601.03632&json=true","fetch_graph":"https://pith.science/api/pith-number/RH7LE3Z4IA5EXW7YQCMDTHNFFW/graph.json","fetch_events":"https://pith.science/api/pith-number/RH7LE3Z4IA5EXW7YQCMDTHNFFW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW/action/storage_attestation","attest_author":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW/action/author_attestation","sign_citation":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW/action/citation_signature","submit_replication":"https://pith.science/pith/RH7LE3Z4IA5EXW7YQCMDTHNFFW/action/replication_record"}},"created_at":"2026-05-18T00:49:42.583675+00:00","updated_at":"2026-05-18T00:49:42.583675+00:00"}