{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:OCVGWXH3AIXRDNDGMTXEFDDRCS","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":"e24b9e799def982c68be99883545d24ab96b866fa7c729831685a3e9eb195b43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-08-19T19:36:39Z","title_canon_sha256":"050beb899a7396a6c57c161942e2180f8b5c8c3687ba3781721425e36996d4d8"},"schema_version":"1.0","source":{"id":"1008.3378","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.3378","created_at":"2026-05-18T04:16:40Z"},{"alias_kind":"arxiv_version","alias_value":"1008.3378v3","created_at":"2026-05-18T04:16:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.3378","created_at":"2026-05-18T04:16:40Z"},{"alias_kind":"pith_short_12","alias_value":"OCVGWXH3AIXR","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OCVGWXH3AIXRDNDG","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OCVGWXH3","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:55c39ad8a3fa745d14213d81564f2ed448fb9e49ec731f3cb7472e59ead60bf6","target":"graph","created_at":"2026-05-18T04:16:40Z","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"},"paper":{"abstract_excerpt":"The impulse approximation of pion production reactions is studied by developing a relativistic formalism, consistent with that used to define the nucleon-nucleon potential. For plane wave initial states we find that the usual one-body (1B) expression O_1B is replaced by O_2B=-iK(m_pi/2)O_1B/m_pi, where K(m_pi/2) is the sum of all irreducible contributions to nucleon-nucleon scattering with energy transfer of m_pi/2. We show that O_2B is approximately O_1B for plane wave initial states. For distorted waves, we find that the usual operator is replaced with a sum of two-body operators that are we","authors_text":"Daniel R. Bolton, Gerald A. Miller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-08-19T19:36:39Z","title":"Impulse approximation in nuclear pion production reactions: absence of a one-body operator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.3378","kind":"arxiv","version":3},"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":"sha256:2aaf895f796e867caa92e9cf3d7a1b4688e9029766e5e0a989152a73f9ede6c3","target":"record","created_at":"2026-05-18T04:16:40Z","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":"e24b9e799def982c68be99883545d24ab96b866fa7c729831685a3e9eb195b43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-08-19T19:36:39Z","title_canon_sha256":"050beb899a7396a6c57c161942e2180f8b5c8c3687ba3781721425e36996d4d8"},"schema_version":"1.0","source":{"id":"1008.3378","kind":"arxiv","version":3}},"canonical_sha256":"70aa6b5cfb022f11b46664ee428c7114bfd183b26ca69ce300bf0b5314be3890","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"70aa6b5cfb022f11b46664ee428c7114bfd183b26ca69ce300bf0b5314be3890","first_computed_at":"2026-05-18T04:16:40.922233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:40.922233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1YyYuPHn/TQ2IRsg1K2HL5ePP7vGKYWJM/PNDTAy7TDVEfYm3J8ekRa9Hx+bhwELON05Sn+X9GY4EhG6YdNFCw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:40.925118Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.3378","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2aaf895f796e867caa92e9cf3d7a1b4688e9029766e5e0a989152a73f9ede6c3","sha256:55c39ad8a3fa745d14213d81564f2ed448fb9e49ec731f3cb7472e59ead60bf6"],"state_sha256":"9c2ea2c6b805838f60fd0cf544c00acf178518c9862ccac63a010387ec752ed1"}