{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:6EBCFJ4MP3CIIGZDBY676EKT4Q","short_pith_number":"pith:6EBCFJ4M","schema_version":"1.0","canonical_sha256":"f10222a78c7ec4841b230e3dff1153e4098a74af0df492b4bd17f535ed080cd8","source":{"kind":"arxiv","id":"1507.00325","version":2},"attestation_state":"computed","paper":{"title":"First measurement of the helicity asymmetry $E$ in $\\eta$ photoproduction on the proton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Celentano, A. D'Angelo, A. Deur, A. El Alaoui, A. Filippi, A. Fradi, A.J.R. Puckett, A. Kim, A. Movsisyan, A. Rizzo, A.S. Biselli, A. Simonyan, B. Garillon, B.G. Ritchie, B. McKinnon, B.S. Ishkhanov, B.T. Morrison, C.A. Meyer, C. Carlin, C. Djalali, C.D. Keith, C. Hanretty, C. Munoz Camacho, C. Salgado, D. Adikaram, D.G. Ireland, D.G. Meekins, D. Ho, D.I. Glazier, D.I. Sober, D. Jenkins, D. Keller, D. R, D.S. Carman, D. Schott, D. Sokhan, E. De Sanctis, E. Golovatch, E. Pasyuk, E. Seder, E. Voutier, F.J. Klein, F. Sabatie, F.-X. Girod, G. Charles, G.D. Smith, G. Fedotov, G. Khachatryan, G. Niculescu, G.P. Gilfoyle, G. Rosner, H. Egiyan, H. Hakobyan, H. Jiang, H.S. Jo, H. Voskanyan, H.Y. Lu, I. Bedlinskiy, I.I. Strakovsky, I.J.D. MacGregor, I. Niculescu, I. Senderovich, Iu. Skorodumina, I. Zonta, J.A. Fleming, J. Ball, J. Brock, J.T. Goetz, J.W. Price, J. Zhang, K.A. Griffioen, K. Hafidi, K. Hicks, K. Joo, K.L. Giovanetti, K. Livingston, K.P. Adhikari, K. Park, L.A. Net, L. Colaneri, L. El Fassi, L. Elouadrhiri, L. Guo, L. Zana, M. Battaglieri, M.C. Kunkel, M. Contalbrigo, M. D, M.D. Anderson, M. Dugger, M. Guidal, M. Hattawy, M. Holtrop, M.H. Wood, M. Khandaker, M.L. Seely, M. Osipenko, M. Ripani, M. Ungaro, N.A. Baltzell, N. Dashyan, N.K. Walford, N. Sparveris, N. Zachariou, O. Cortes, O. Pogorelko, P. Collins, P. Eugenio, P.L. Cole, P. Lenisa, P. Mattione, P. Nadel-Turonski, P. Peng, P. Roy, P. Stoler, R.A. Badui, R.A. Montgomery, R.A. Schumacher, R. De Vita, R. Dupre, R. Tucker, R.W. Gothe, S. Anefalos Pereira, S. Boiarinov, S. Chandavar, S. Fegan, S. Joosten, S.M. Hughes, S. Niccolai, S. Park, S. Pisano, S. Stepanyan, S. Strauch, T. Mineeva, V. Batourine, V. Crede, V.D. Burkert, V. Kubarovsky, V. Mokeev, V. Sytnik, W. Gohn, W.J. Briscoe, W.K. Brooks, W. Phelps, X. Wei, Ye Tian, Y. Ghandilyan, Y. Ilieva, Y. Prok, Z. Akbar, Z.W. Zhao","submitted_at":"2015-07-01T19:34:38Z","abstract_excerpt":"Results are presented for the first measurement of the double-polarization helicity asymmetry E for the $\\eta$ photoproduction reaction $\\gamma p \\rightarrow \\eta p$. Data were obtained using the FROzen Spin Target (FROST) with the CLAS spectrometer in Hall B at Jefferson Lab, covering a range of center-of-mass energy W from threshold to 2.15 GeV and a large range in center-of-mass polar angle. As an initial application of these data, the results have been incorporated into the J\\\"ulich model to examine the case for the existence of a narrow $N^*$ resonance between 1.66 and 1.70 GeV. The addit"},"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":"1507.00325","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-07-01T19:34:38Z","cross_cats_sorted":[],"title_canon_sha256":"cb46ef91ffe51227caffea66aca8489cb1b9a63858001133f48081377c85d866","abstract_canon_sha256":"14a615d10f4fcc91c5283aa2ed89cdf3c5d262b6da263226375ddb7fabad71f3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:21:55.228104Z","signature_b64":"H2cpRmnq7p5Twk9i7BrgzQ2IT1l1AtVd2ckEONNDxzhC4FNNgY5OgOy1XDo3jzsEqmapZfj5fgNp9pgA/QogDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f10222a78c7ec4841b230e3dff1153e4098a74af0df492b4bd17f535ed080cd8","last_reissued_at":"2026-05-18T01:21:55.227519Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:21:55.227519Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First measurement of the helicity asymmetry $E$ in $\\eta$ photoproduction on the proton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Celentano, A. D'Angelo, A. Deur, A. El Alaoui, A. Filippi, A. Fradi, A.J.R. Puckett, A. Kim, A. Movsisyan, A. Rizzo, A.S. Biselli, A. Simonyan, B. Garillon, B.G. Ritchie, B. McKinnon, B.S. Ishkhanov, B.T. Morrison, C.A. Meyer, C. Carlin, C. Djalali, C.D. Keith, C. Hanretty, C. Munoz Camacho, C. Salgado, D. Adikaram, D.G. Ireland, D.G. Meekins, D. Ho, D.I. Glazier, D.I. Sober, D. Jenkins, D. Keller, D. R, D.S. Carman, D. Schott, D. Sokhan, E. De Sanctis, E. Golovatch, E. Pasyuk, E. Seder, E. Voutier, F.J. Klein, F. Sabatie, F.-X. Girod, G. Charles, G.D. Smith, G. Fedotov, G. Khachatryan, G. Niculescu, G.P. Gilfoyle, G. Rosner, H. Egiyan, H. Hakobyan, H. Jiang, H.S. Jo, H. Voskanyan, H.Y. Lu, I. Bedlinskiy, I.I. Strakovsky, I.J.D. MacGregor, I. Niculescu, I. Senderovich, Iu. Skorodumina, I. Zonta, J.A. Fleming, J. Ball, J. Brock, J.T. Goetz, J.W. Price, J. Zhang, K.A. Griffioen, K. Hafidi, K. Hicks, K. Joo, K.L. Giovanetti, K. Livingston, K.P. Adhikari, K. Park, L.A. Net, L. Colaneri, L. El Fassi, L. Elouadrhiri, L. Guo, L. Zana, M. Battaglieri, M.C. Kunkel, M. Contalbrigo, M. D, M.D. Anderson, M. Dugger, M. Guidal, M. Hattawy, M. Holtrop, M.H. Wood, M. Khandaker, M.L. Seely, M. Osipenko, M. Ripani, M. Ungaro, N.A. Baltzell, N. Dashyan, N.K. Walford, N. Sparveris, N. Zachariou, O. Cortes, O. Pogorelko, P. Collins, P. Eugenio, P.L. Cole, P. Lenisa, P. Mattione, P. Nadel-Turonski, P. Peng, P. Roy, P. Stoler, R.A. Badui, R.A. Montgomery, R.A. Schumacher, R. De Vita, R. Dupre, R. Tucker, R.W. Gothe, S. Anefalos Pereira, S. Boiarinov, S. Chandavar, S. Fegan, S. Joosten, S.M. Hughes, S. Niccolai, S. Park, S. Pisano, S. Stepanyan, S. Strauch, T. Mineeva, V. Batourine, V. Crede, V.D. Burkert, V. Kubarovsky, V. Mokeev, V. Sytnik, W. Gohn, W.J. Briscoe, W.K. Brooks, W. Phelps, X. Wei, Ye Tian, Y. Ghandilyan, Y. Ilieva, Y. Prok, Z. Akbar, Z.W. Zhao","submitted_at":"2015-07-01T19:34:38Z","abstract_excerpt":"Results are presented for the first measurement of the double-polarization helicity asymmetry E for the $\\eta$ photoproduction reaction $\\gamma p \\rightarrow \\eta p$. Data were obtained using the FROzen Spin Target (FROST) with the CLAS spectrometer in Hall B at Jefferson Lab, covering a range of center-of-mass energy W from threshold to 2.15 GeV and a large range in center-of-mass polar angle. As an initial application of these data, the results have been incorporated into the J\\\"ulich model to examine the case for the existence of a narrow $N^*$ resonance between 1.66 and 1.70 GeV. The addit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.00325","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":"1507.00325","created_at":"2026-05-18T01:21:55.227602+00:00"},{"alias_kind":"arxiv_version","alias_value":"1507.00325v2","created_at":"2026-05-18T01:21:55.227602+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.00325","created_at":"2026-05-18T01:21:55.227602+00:00"},{"alias_kind":"pith_short_12","alias_value":"6EBCFJ4MP3CI","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_16","alias_value":"6EBCFJ4MP3CIIGZD","created_at":"2026-05-18T12:29:07.941421+00:00"},{"alias_kind":"pith_short_8","alias_value":"6EBCFJ4M","created_at":"2026-05-18T12:29:07.941421+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/6EBCFJ4MP3CIIGZDBY676EKT4Q","json":"https://pith.science/pith/6EBCFJ4MP3CIIGZDBY676EKT4Q.json","graph_json":"https://pith.science/api/pith-number/6EBCFJ4MP3CIIGZDBY676EKT4Q/graph.json","events_json":"https://pith.science/api/pith-number/6EBCFJ4MP3CIIGZDBY676EKT4Q/events.json","paper":"https://pith.science/paper/6EBCFJ4M"},"agent_actions":{"view_html":"https://pith.science/pith/6EBCFJ4MP3CIIGZDBY676EKT4Q","download_json":"https://pith.science/pith/6EBCFJ4MP3CIIGZDBY676EKT4Q.json","view_paper":"https://pith.science/paper/6EBCFJ4M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1507.00325&json=true","fetch_graph":"https://pith.science/api/pith-number/6EBCFJ4MP3CIIGZDBY676EKT4Q/graph.json","fetch_events":"https://pith.science/api/pith-number/6EBCFJ4MP3CIIGZDBY676EKT4Q/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6EBCFJ4MP3CIIGZDBY676EKT4Q/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6EBCFJ4MP3CIIGZDBY676EKT4Q/action/storage_attestation","attest_author":"https://pith.science/pith/6EBCFJ4MP3CIIGZDBY676EKT4Q/action/author_attestation","sign_citation":"https://pith.science/pith/6EBCFJ4MP3CIIGZDBY676EKT4Q/action/citation_signature","submit_replication":"https://pith.science/pith/6EBCFJ4MP3CIIGZDBY676EKT4Q/action/replication_record"}},"created_at":"2026-05-18T01:21:55.227602+00:00","updated_at":"2026-05-18T01:21:55.227602+00:00"}