{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:EUILXGDSIEN4KBYYEIC7XNPQ3I","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"0198d9555076fb15f68859ec62aeba4b2a587f9a526c77e1e8a3b443e6255965","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-10-29T04:08:43Z","title_canon_sha256":"b7ecdd78b202bf2ab0aa897acaa0e2782fa6bd21c1894bdd3751dd674a7bdc5e"},"schema_version":"1.0","source":{"id":"0910.5545","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.5545","created_at":"2026-07-04T17:21:27Z"},{"alias_kind":"arxiv_version","alias_value":"0910.5545v1","created_at":"2026-07-04T17:21:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.5545","created_at":"2026-07-04T17:21:27Z"},{"alias_kind":"pith_short_12","alias_value":"EUILXGDSIEN4","created_at":"2026-07-04T17:21:27Z"},{"alias_kind":"pith_short_16","alias_value":"EUILXGDSIEN4KBYY","created_at":"2026-07-04T17:21:27Z"},{"alias_kind":"pith_short_8","alias_value":"EUILXGDS","created_at":"2026-07-04T17:21:27Z"}],"graph_snapshots":[{"event_id":"sha256:51ff59e678d5631a6f23f99e4667bb78657e6ab4b0f1cee0f008d8e6b5d1d48b","target":"graph","created_at":"2026-07-04T17:21:27Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0910.5545/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Keeping in mind the possibility of large theta(13), which will be soon explored by reactor and accelerator experiments, I formulate a perturbation theory of neutrino oscillation under the ansatz, sin^2(theta_{13}) \\simeq Delta m^2_{21}/\\Delta m^2_{31} \\simeq 0.03, which is comparable to the Chooz limit. Under the framework, I derive the perturbative formula of the nu_{e} appearance probability valid to order \\epsilon^2 in which effects of arbitrary matter density profile is taken into account. I use the formula to analyze problem of possible obstruction to detecting lepton CP violation by effe","authors_text":"Hisakazu Minakata","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-10-29T04:08:43Z","title":"Large-Theta(13) Perturbation Theory of Neutrino Oscillation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.5545","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:20a1c535030f679d11168e5d7a697c2069a8ee6bc16c332cc808e410a4e8cd7f","target":"record","created_at":"2026-07-04T17:21:27Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"0198d9555076fb15f68859ec62aeba4b2a587f9a526c77e1e8a3b443e6255965","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2009-10-29T04:08:43Z","title_canon_sha256":"b7ecdd78b202bf2ab0aa897acaa0e2782fa6bd21c1894bdd3751dd674a7bdc5e"},"schema_version":"1.0","source":{"id":"0910.5545","kind":"arxiv","version":1}},"canonical_sha256":"2510bb9872411bc507182205fbb5f0da06167e0e6ba492842e4ff76fd576e8bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2510bb9872411bc507182205fbb5f0da06167e0e6ba492842e4ff76fd576e8bc","first_computed_at":"2026-07-04T17:21:27.673003Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:21:27.673003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8DsXJysp2Ips6mKN4uoF6BR2ktdG+sP4jsC/a8BtuXHbpSBPWTtb3nJPGNKyswbiCjS/1Q2tm5LC4f/fa8ZfBg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:21:27.673432Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.5545","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:20a1c535030f679d11168e5d7a697c2069a8ee6bc16c332cc808e410a4e8cd7f","sha256:51ff59e678d5631a6f23f99e4667bb78657e6ab4b0f1cee0f008d8e6b5d1d48b"],"state_sha256":"ad6024482342335586b2c1102e0a54ce1326a915e358f3044c2d8a276995fa0c"}