{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:NGL6HXXPWR7KK22HCI5L6NOURM","short_pith_number":"pith:NGL6HXXP","schema_version":"1.0","canonical_sha256":"6997e3deefb47ea56b47123abf35d48b3c2250efdf7f5995fdaad9d8bc0a22b0","source":{"kind":"arxiv","id":"1506.08849","version":2},"attestation_state":"computed","paper":{"title":"Measurement of pi^0 photoproduction on the proton at MAMI C","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A. Braghieri, A. Denig, A. Fix, A. K\\\"aser, A. Lazarev, A. Mushkarenkov, A. Neganov, A. Neiser, A. Polonski, A. Rajabi, A. Sarty, A. Thiel, A. Thomas, B. Krusche, B. Oussena, C. Collicott, C. S. Akondi, C. Sfienti, D. Glowa, D. G. Middleton, D. Hornidge, D. I. Glazier, D. J. Hamilton, D. M. Manley, D. M. Schott, D. Paudyal, D. P. Watts, D. Werthm\\\"uller, E. J. Downie, F. Afzal, F. Cividini, G. Gurevich, G. M. Huber, G. Reicherz, G. Ron, H. J. Arends, I. I. Strakovsky, I. J. D. MacGregor, I. Keshelashvili, I. Supek, J. C. McGeorge, J. Linturi, J. R. M. Annand, J. Wettig, K. Livingston, K. Spieker, L. A. Zana, L. Tiator, L. V. Fil'kov, L. Witthauer, M. Dieterle, M. F. Taragin, M. I. Ferretti Bondy, M. Korolija, M. Martemianov, M. Oberle, M. Ostrick, M. Thiel, M. Unverzagt, M. Wolfes, N. Borisov, O. Steffen, P. Adlarson, P. B. Otte, P. Ott, P. Pedroni, P. P. Martel, R. Beck, R. Kondratiev, R. L. Workman, R. Miskimen, S. Cherepnya, S. Costanza, S. Gardner, S. Garni, S. Kay, S. Prakhov, S. Schumann, S. Wagner, Th. Strub, T. Rostomyan, V. Lisin, V. L. Kashevarov, V. Sokhoyan, V. V. Kulikov, V. V. Polyanski, W. Gradl, W. J. Briscoe, W. Meyer, Ya. I. Azimov, Yu. A. Usov","submitted_at":"2015-06-29T20:23:48Z","abstract_excerpt":"Differential cross sections for the gamma p -> pi^0 p reaction have been measured with the A2 tagged-photon facilities at the Mainz Microtron, MAMI C, up to the center-of-mass energy W=1.9 GeV. The new results, obtained with a fine energy and angular binning, increase the existing quantity of pi^0 photoproduction data by ~47%. Owing to the unprecedented statistical accuracy and the full angular coverage, the results are sensitive to high partial-wave amplitudes. This is demonstrated by the decomposition of the differential cross sections in terms of Legendre polynomials and by further comparis"},"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":"1506.08849","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2015-06-29T20:23:48Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"c2c31cc5b2ca88a84b4c77dfa97837aa7ba779bae34cd58ef7ad0f89f9537396","abstract_canon_sha256":"994aa5e2645206ab3ba05616ffc5744954c9a228db23a590a3fe90d0d7cd7e2c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:34:15.848162Z","signature_b64":"GTn4OlQmodvponYY3mmvBHAJwPIq/DCjJAH6dgH/pY0XX7kEe3HASRGrzs2pi3zSOGZOTjF6uC4xC1heilccAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6997e3deefb47ea56b47123abf35d48b3c2250efdf7f5995fdaad9d8bc0a22b0","last_reissued_at":"2026-05-18T01:34:15.847306Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:34:15.847306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of pi^0 photoproduction on the proton at MAMI C","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A. Braghieri, A. Denig, A. Fix, A. K\\\"aser, A. Lazarev, A. Mushkarenkov, A. Neganov, A. Neiser, A. Polonski, A. Rajabi, A. Sarty, A. Thiel, A. Thomas, B. Krusche, B. Oussena, C. Collicott, C. S. Akondi, C. Sfienti, D. Glowa, D. G. Middleton, D. Hornidge, D. I. Glazier, D. J. Hamilton, D. M. Manley, D. M. Schott, D. Paudyal, D. P. Watts, D. Werthm\\\"uller, E. J. Downie, F. Afzal, F. Cividini, G. Gurevich, G. M. Huber, G. Reicherz, G. Ron, H. J. Arends, I. I. Strakovsky, I. J. D. MacGregor, I. Keshelashvili, I. Supek, J. C. McGeorge, J. Linturi, J. R. M. Annand, J. Wettig, K. Livingston, K. Spieker, L. A. Zana, L. Tiator, L. V. Fil'kov, L. Witthauer, M. Dieterle, M. F. Taragin, M. I. Ferretti Bondy, M. Korolija, M. Martemianov, M. Oberle, M. Ostrick, M. Thiel, M. Unverzagt, M. Wolfes, N. Borisov, O. Steffen, P. Adlarson, P. B. Otte, P. Ott, P. Pedroni, P. P. Martel, R. Beck, R. Kondratiev, R. L. Workman, R. Miskimen, S. Cherepnya, S. Costanza, S. Gardner, S. Garni, S. Kay, S. Prakhov, S. Schumann, S. Wagner, Th. Strub, T. Rostomyan, V. Lisin, V. L. Kashevarov, V. Sokhoyan, V. V. Kulikov, V. V. Polyanski, W. Gradl, W. J. Briscoe, W. Meyer, Ya. I. Azimov, Yu. A. Usov","submitted_at":"2015-06-29T20:23:48Z","abstract_excerpt":"Differential cross sections for the gamma p -> pi^0 p reaction have been measured with the A2 tagged-photon facilities at the Mainz Microtron, MAMI C, up to the center-of-mass energy W=1.9 GeV. The new results, obtained with a fine energy and angular binning, increase the existing quantity of pi^0 photoproduction data by ~47%. Owing to the unprecedented statistical accuracy and the full angular coverage, the results are sensitive to high partial-wave amplitudes. This is demonstrated by the decomposition of the differential cross sections in terms of Legendre polynomials and by further comparis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.08849","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":"1506.08849","created_at":"2026-05-18T01:34:15.847492+00:00"},{"alias_kind":"arxiv_version","alias_value":"1506.08849v2","created_at":"2026-05-18T01:34:15.847492+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.08849","created_at":"2026-05-18T01:34:15.847492+00:00"},{"alias_kind":"pith_short_12","alias_value":"NGL6HXXPWR7K","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_16","alias_value":"NGL6HXXPWR7KK22H","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_8","alias_value":"NGL6HXXP","created_at":"2026-05-18T12:29:32.376354+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/NGL6HXXPWR7KK22HCI5L6NOURM","json":"https://pith.science/pith/NGL6HXXPWR7KK22HCI5L6NOURM.json","graph_json":"https://pith.science/api/pith-number/NGL6HXXPWR7KK22HCI5L6NOURM/graph.json","events_json":"https://pith.science/api/pith-number/NGL6HXXPWR7KK22HCI5L6NOURM/events.json","paper":"https://pith.science/paper/NGL6HXXP"},"agent_actions":{"view_html":"https://pith.science/pith/NGL6HXXPWR7KK22HCI5L6NOURM","download_json":"https://pith.science/pith/NGL6HXXPWR7KK22HCI5L6NOURM.json","view_paper":"https://pith.science/paper/NGL6HXXP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1506.08849&json=true","fetch_graph":"https://pith.science/api/pith-number/NGL6HXXPWR7KK22HCI5L6NOURM/graph.json","fetch_events":"https://pith.science/api/pith-number/NGL6HXXPWR7KK22HCI5L6NOURM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NGL6HXXPWR7KK22HCI5L6NOURM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NGL6HXXPWR7KK22HCI5L6NOURM/action/storage_attestation","attest_author":"https://pith.science/pith/NGL6HXXPWR7KK22HCI5L6NOURM/action/author_attestation","sign_citation":"https://pith.science/pith/NGL6HXXPWR7KK22HCI5L6NOURM/action/citation_signature","submit_replication":"https://pith.science/pith/NGL6HXXPWR7KK22HCI5L6NOURM/action/replication_record"}},"created_at":"2026-05-18T01:34:15.847492+00:00","updated_at":"2026-05-18T01:34:15.847492+00:00"}