{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:PBOAIO5T4LHTTMAC67UTRQPVE5","short_pith_number":"pith:PBOAIO5T","schema_version":"1.0","canonical_sha256":"785c043bb3e2cf39b002f7e938c1f52740a26c672bb9e972818ca0b9a383464a","source":{"kind":"arxiv","id":"0907.1451","version":1},"attestation_state":"computed","paper":{"title":"Reanalysis of pion pion phase shifts from K -> pi pi decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Pich, G. Ecker, V. Cirigliano","submitted_at":"2009-07-09T09:07:43Z","abstract_excerpt":"We re-investigate the impact of isospin violation for extracting the s-wave pion pion scattering phase shift difference delta_0(M_K) - delta_2(M_K) from K -> pi pi decays. Compared to our previous analysis in 2003, more precise experimental data and improved knowledge of low-energy constants are used. In addition, we employ a more robust data-driven method to obtain the phase shift difference delta_0(M_K) - delta_2(M_K) = (52.5 \\pm 0.8_{exp} \\pm 2.8_{theor}) degrees."},"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":"0907.1451","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-07-09T09:07:43Z","cross_cats_sorted":[],"title_canon_sha256":"a6abe644adb378eb4acda717b924a2a5a66d4d6a3f9d7c7babc1647f94d59363","abstract_canon_sha256":"642d6cf7beb685b22c8b52dd4b3f6745b21797b4d42a57d2bcff2ee0dbca38ab"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:51:54.462547Z","signature_b64":"0zYNKJgPUhCYBBaB/iGTuLz51SxgBg7UeHSb4p/tLG2Gmf1vImi3oa1TtTbWLKCoC8xj7D2bgqlUbXS4IdduAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"785c043bb3e2cf39b002f7e938c1f52740a26c672bb9e972818ca0b9a383464a","last_reissued_at":"2026-07-04T15:51:54.462158Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:51:54.462158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Reanalysis of pion pion phase shifts from K -> pi pi decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Pich, G. Ecker, V. Cirigliano","submitted_at":"2009-07-09T09:07:43Z","abstract_excerpt":"We re-investigate the impact of isospin violation for extracting the s-wave pion pion scattering phase shift difference delta_0(M_K) - delta_2(M_K) from K -> pi pi decays. Compared to our previous analysis in 2003, more precise experimental data and improved knowledge of low-energy constants are used. In addition, we employ a more robust data-driven method to obtain the phase shift difference delta_0(M_K) - delta_2(M_K) = (52.5 \\pm 0.8_{exp} \\pm 2.8_{theor}) degrees."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.1451","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/0907.1451/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":"0907.1451","created_at":"2026-07-04T15:51:54.462226+00:00"},{"alias_kind":"arxiv_version","alias_value":"0907.1451v1","created_at":"2026-07-04T15:51:54.462226+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.1451","created_at":"2026-07-04T15:51:54.462226+00:00"},{"alias_kind":"pith_short_12","alias_value":"PBOAIO5T4LHT","created_at":"2026-07-04T15:51:54.462226+00:00"},{"alias_kind":"pith_short_16","alias_value":"PBOAIO5T4LHTTMAC","created_at":"2026-07-04T15:51:54.462226+00:00"},{"alias_kind":"pith_short_8","alias_value":"PBOAIO5T","created_at":"2026-07-04T15:51:54.462226+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/PBOAIO5T4LHTTMAC67UTRQPVE5","json":"https://pith.science/pith/PBOAIO5T4LHTTMAC67UTRQPVE5.json","graph_json":"https://pith.science/api/pith-number/PBOAIO5T4LHTTMAC67UTRQPVE5/graph.json","events_json":"https://pith.science/api/pith-number/PBOAIO5T4LHTTMAC67UTRQPVE5/events.json","paper":"https://pith.science/paper/PBOAIO5T"},"agent_actions":{"view_html":"https://pith.science/pith/PBOAIO5T4LHTTMAC67UTRQPVE5","download_json":"https://pith.science/pith/PBOAIO5T4LHTTMAC67UTRQPVE5.json","view_paper":"https://pith.science/paper/PBOAIO5T","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0907.1451&json=true","fetch_graph":"https://pith.science/api/pith-number/PBOAIO5T4LHTTMAC67UTRQPVE5/graph.json","fetch_events":"https://pith.science/api/pith-number/PBOAIO5T4LHTTMAC67UTRQPVE5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PBOAIO5T4LHTTMAC67UTRQPVE5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PBOAIO5T4LHTTMAC67UTRQPVE5/action/storage_attestation","attest_author":"https://pith.science/pith/PBOAIO5T4LHTTMAC67UTRQPVE5/action/author_attestation","sign_citation":"https://pith.science/pith/PBOAIO5T4LHTTMAC67UTRQPVE5/action/citation_signature","submit_replication":"https://pith.science/pith/PBOAIO5T4LHTTMAC67UTRQPVE5/action/replication_record"}},"created_at":"2026-07-04T15:51:54.462226+00:00","updated_at":"2026-07-04T15:51:54.462226+00:00"}