{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:Z2GMC2BXSWVJ2DHLVG6VZMOGLJ","short_pith_number":"pith:Z2GMC2BX","schema_version":"1.0","canonical_sha256":"ce8cc1683795aa9d0ceba9bd5cb1c65a6ce3d7d3e7820b58a94dddbe7ce99d75","source":{"kind":"arxiv","id":"1010.4213","version":2},"attestation_state":"computed","paper":{"title":"Polarization observables in $\\pi^0\\eta$-photoproduction on the proton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"A. Fix, H. Arenh\\\"ovel","submitted_at":"2010-10-20T14:36:59Z","abstract_excerpt":"For $\\pi^0\\eta$-photoproduction on the nucleon formal expressions are developed for the five-fold differential cross section and the recoil polarization including beam and target polarizations. The polarization observables are described by various beam, target and beam-target asymmetries for polarized photons and/or polarized nucleons. They are given as bilinear hermitean forms in the reaction matrix elements divided by the unpolarized cross section. Numerical results for the linear and circular beam asymmetries for $\\gamma p\\to\\pi^0\\eta p$ are obtained within an isobar model and are compared "},"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":"1010.4213","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2010-10-20T14:36:59Z","cross_cats_sorted":[],"title_canon_sha256":"ba1bb4550fcc0d093f306975894edf99778ec9f070bfba83c04654745fd23d06","abstract_canon_sha256":"01636567904803cc88b666fae1d4b45e85956b5327c413eaae9274c9c28b232c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:27:56.552659Z","signature_b64":"viie3onOm4fqnZKANeyT6ksll6ADz+fwNAGWPrmeQaOPoHhCyoxuUqdoBehDKZFb+bakApTeTeILUvyJQHv+BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ce8cc1683795aa9d0ceba9bd5cb1c65a6ce3d7d3e7820b58a94dddbe7ce99d75","last_reissued_at":"2026-05-18T04:27:56.552104Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:27:56.552104Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Polarization observables in $\\pi^0\\eta$-photoproduction on the proton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"A. Fix, H. Arenh\\\"ovel","submitted_at":"2010-10-20T14:36:59Z","abstract_excerpt":"For $\\pi^0\\eta$-photoproduction on the nucleon formal expressions are developed for the five-fold differential cross section and the recoil polarization including beam and target polarizations. The polarization observables are described by various beam, target and beam-target asymmetries for polarized photons and/or polarized nucleons. They are given as bilinear hermitean forms in the reaction matrix elements divided by the unpolarized cross section. Numerical results for the linear and circular beam asymmetries for $\\gamma p\\to\\pi^0\\eta p$ are obtained within an isobar model and are compared "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.4213","kind":"arxiv","version":2},"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":"1010.4213","created_at":"2026-05-18T04:27:56.552185+00:00"},{"alias_kind":"arxiv_version","alias_value":"1010.4213v2","created_at":"2026-05-18T04:27:56.552185+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.4213","created_at":"2026-05-18T04:27:56.552185+00:00"},{"alias_kind":"pith_short_12","alias_value":"Z2GMC2BXSWVJ","created_at":"2026-05-18T12:26:17.028572+00:00"},{"alias_kind":"pith_short_16","alias_value":"Z2GMC2BXSWVJ2DHL","created_at":"2026-05-18T12:26:17.028572+00:00"},{"alias_kind":"pith_short_8","alias_value":"Z2GMC2BX","created_at":"2026-05-18T12:26:17.028572+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/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ","json":"https://pith.science/pith/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ.json","graph_json":"https://pith.science/api/pith-number/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/graph.json","events_json":"https://pith.science/api/pith-number/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/events.json","paper":"https://pith.science/paper/Z2GMC2BX"},"agent_actions":{"view_html":"https://pith.science/pith/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ","download_json":"https://pith.science/pith/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ.json","view_paper":"https://pith.science/paper/Z2GMC2BX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1010.4213&json=true","fetch_graph":"https://pith.science/api/pith-number/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/graph.json","fetch_events":"https://pith.science/api/pith-number/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/action/storage_attestation","attest_author":"https://pith.science/pith/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/action/author_attestation","sign_citation":"https://pith.science/pith/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/action/citation_signature","submit_replication":"https://pith.science/pith/Z2GMC2BXSWVJ2DHLVG6VZMOGLJ/action/replication_record"}},"created_at":"2026-05-18T04:27:56.552185+00:00","updated_at":"2026-05-18T04:27:56.552185+00:00"}