{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:UP4WNYJ3LHHS5MFCP2G3Y5AAAC","short_pith_number":"pith:UP4WNYJ3","schema_version":"1.0","canonical_sha256":"a3f966e13b59cf2eb0a27e8dbc7400008ffbcfdca705f036595e1f73223c7d0e","source":{"kind":"arxiv","id":"1501.00289","version":1},"attestation_state":"computed","paper":{"title":"The role of pion exchange in $\\eta$ meson photo production on the deuteron","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"A. Fix, H. Arenh\\\"ovel, M. Levchuk, M. Tammam","submitted_at":"2015-01-01T16:52:13Z","abstract_excerpt":"Incoherent $\\eta$ photoproduction on the deuteron is studied with the main emphasis on the role of final state interactions. In addition to the previously studied mechanisms of $NN$ and $\\eta N$ rescatterings, the role of an intermediate pion exchange is considered in detail, where first a pion is photoproduced on one nucleon and then rescatters into an $\\eta$ meson on the other, the spectator nucleon. It is found, that the role of this pion mediated contribution is comparable in size to that of $\\eta N$ rescattering. Results for total and semi-inclusive differential cross sections and associa"},"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":"1501.00289","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-01-01T16:52:13Z","cross_cats_sorted":[],"title_canon_sha256":"623b6421ec7fea172390becd69c274ece2bc8ab8a64735e55a4593f6eff924bb","abstract_canon_sha256":"a3019ac7422153cc5643ee8d379938f0ce0e225d795677adf40a640bce5a9501"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:14.960478Z","signature_b64":"wfVnmzHRxeEcf4DQwDxaXoxC3+sCLBiIlSeIu4FknXS8qUMMFat04otjRAiqPSuL7YjfFGVO2Qw7ADYFfShICg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3f966e13b59cf2eb0a27e8dbc7400008ffbcfdca705f036595e1f73223c7d0e","last_reissued_at":"2026-05-18T01:41:14.959763Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:14.959763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The role of pion exchange in $\\eta$ meson photo production on the deuteron","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"A. Fix, H. Arenh\\\"ovel, M. Levchuk, M. Tammam","submitted_at":"2015-01-01T16:52:13Z","abstract_excerpt":"Incoherent $\\eta$ photoproduction on the deuteron is studied with the main emphasis on the role of final state interactions. In addition to the previously studied mechanisms of $NN$ and $\\eta N$ rescatterings, the role of an intermediate pion exchange is considered in detail, where first a pion is photoproduced on one nucleon and then rescatters into an $\\eta$ meson on the other, the spectator nucleon. It is found, that the role of this pion mediated contribution is comparable in size to that of $\\eta N$ rescattering. Results for total and semi-inclusive differential cross sections and associa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00289","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":""},"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":"1501.00289","created_at":"2026-05-18T01:41:14.959883+00:00"},{"alias_kind":"arxiv_version","alias_value":"1501.00289v1","created_at":"2026-05-18T01:41:14.959883+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00289","created_at":"2026-05-18T01:41:14.959883+00:00"},{"alias_kind":"pith_short_12","alias_value":"UP4WNYJ3LHHS","created_at":"2026-05-18T12:29:44.643036+00:00"},{"alias_kind":"pith_short_16","alias_value":"UP4WNYJ3LHHS5MFC","created_at":"2026-05-18T12:29:44.643036+00:00"},{"alias_kind":"pith_short_8","alias_value":"UP4WNYJ3","created_at":"2026-05-18T12:29:44.643036+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/UP4WNYJ3LHHS5MFCP2G3Y5AAAC","json":"https://pith.science/pith/UP4WNYJ3LHHS5MFCP2G3Y5AAAC.json","graph_json":"https://pith.science/api/pith-number/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/graph.json","events_json":"https://pith.science/api/pith-number/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/events.json","paper":"https://pith.science/paper/UP4WNYJ3"},"agent_actions":{"view_html":"https://pith.science/pith/UP4WNYJ3LHHS5MFCP2G3Y5AAAC","download_json":"https://pith.science/pith/UP4WNYJ3LHHS5MFCP2G3Y5AAAC.json","view_paper":"https://pith.science/paper/UP4WNYJ3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1501.00289&json=true","fetch_graph":"https://pith.science/api/pith-number/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/graph.json","fetch_events":"https://pith.science/api/pith-number/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/action/storage_attestation","attest_author":"https://pith.science/pith/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/action/author_attestation","sign_citation":"https://pith.science/pith/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/action/citation_signature","submit_replication":"https://pith.science/pith/UP4WNYJ3LHHS5MFCP2G3Y5AAAC/action/replication_record"}},"created_at":"2026-05-18T01:41:14.959883+00:00","updated_at":"2026-05-18T01:41:14.959883+00:00"}