{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:OLSIFI4SBWQFFF7OVHVRP2RSNJ","short_pith_number":"pith:OLSIFI4S","schema_version":"1.0","canonical_sha256":"72e482a3920da05297eea9eb17ea326a52effce6a4b21612f5c939c490e99e0b","source":{"kind":"arxiv","id":"1207.0571","version":4},"attestation_state":"computed","paper":{"title":"Observation of the Helium 7 Lambda hypernucleus by the (e,e'K+) reaction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Acha, A. Ahmidouch, A. Asaturyan, A. Daniel, A. Gasparian, A. Margaryan, A. Matsumura, A. Mkrtchyan, A. Ohtani, B. Hu, C. Chen, C. Jayalath, C. Keppel, C. Yan, D. Androic, D. Gaskell, D. Honda, D. Kawama, D. Mack, Ed V. Hungerford, E. F. Gibson, E. Hiyama, E. K. Segbefia, F. Benmokhtar, F. Kato, G. Marikyan, G. Niculescu, G. Smith, H. Fenker, H. Kanda, H. Mkrtchyan, H. Nomura, J. Reinhold, J. Roche, K. Egiyan, K. J. Lan, K. Johnston, K. Maeda, K. Nonaka, K. Tsukada, L. Cole, L. Gan, L. Tang, L. Yuan, M. Christy, M. Elaasar, M. Furic, M.-I. Niculescu, M. Jones, M. Kaneta, M. Oyamada, M. Sumihama, N. Kalantarians, N. Maruyama, N. Perez, N. Simicevic, O. Hashimoto, O. K. Baker, P. Baturin, P. Bosted, P. Gueye, P. Markowitz, R. Asaturyan, R. Carlini, R. Ent, S. A. Wood, S. Danagoulian, S. Kato, S. Malace, S. Nagao, S. N. Nakamura, S. Randeniya, S. Wells, S. Zhamkochyan (HKS (JLab E01-011) Collaboration), T. Gogami, T. Horn, T. Maruta, T. Miyoshi, T. Navasardyan, T. Petkovic, T. Seva, T. Takahashi, V. Dharmawardane, V. M. Rodriguez, V. Tadevosyan, V. Tvaskis, W. Luo, W. Vulcan, Y. Fujii, Y. Han, Y. Okayasu, Y. Sato, Y. Song","submitted_at":"2012-07-03T04:47:14Z","abstract_excerpt":"An experiment with a newly developed high-resolution kaon spectrometer (HKS) and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson Lab (JLab). The ground state of a neutron-rich hypernucleus, He 7 Lambda, was observed for the first time with the (e,e'K+) reaction with an energy resolution of ~0.6 MeV. This resolution is the best reported to date for hypernuclear reaction spectroscopy. The he 7 Lambda binding energy supplies the last missing information of the A=7, T=1 hypernuclear iso-triplet, providing a new input for the charge symmetry breakin"},"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":"1207.0571","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-07-03T04:47:14Z","cross_cats_sorted":[],"title_canon_sha256":"04f3c5d0b113a50111efe51826050b7befc587c1708deafcc44b925f3d479610","abstract_canon_sha256":"fc112fc368084ef0b8b8b6e52a5fbc218b778a3693efc71b22064aa49e580f1e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:35.471607Z","signature_b64":"M3fYPArJxQxA/FmstJLuy8aSYEEWbNKTDbm4nqq4hjY0MbxPLXdfJfBFrhiOOD8S1acUeqCzCQf0buVIYjgKDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"72e482a3920da05297eea9eb17ea326a52effce6a4b21612f5c939c490e99e0b","last_reissued_at":"2026-05-18T01:56:35.471125Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:35.471125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observation of the Helium 7 Lambda hypernucleus by the (e,e'K+) reaction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Acha, A. Ahmidouch, A. Asaturyan, A. Daniel, A. Gasparian, A. Margaryan, A. Matsumura, A. Mkrtchyan, A. Ohtani, B. Hu, C. Chen, C. Jayalath, C. Keppel, C. Yan, D. Androic, D. Gaskell, D. Honda, D. Kawama, D. Mack, Ed V. Hungerford, E. F. Gibson, E. Hiyama, E. K. Segbefia, F. Benmokhtar, F. Kato, G. Marikyan, G. Niculescu, G. Smith, H. Fenker, H. Kanda, H. Mkrtchyan, H. Nomura, J. Reinhold, J. Roche, K. Egiyan, K. J. Lan, K. Johnston, K. Maeda, K. Nonaka, K. Tsukada, L. Cole, L. Gan, L. Tang, L. Yuan, M. Christy, M. Elaasar, M. Furic, M.-I. Niculescu, M. Jones, M. Kaneta, M. Oyamada, M. Sumihama, N. Kalantarians, N. Maruyama, N. Perez, N. Simicevic, O. Hashimoto, O. K. Baker, P. Baturin, P. Bosted, P. Gueye, P. Markowitz, R. Asaturyan, R. Carlini, R. Ent, S. A. Wood, S. Danagoulian, S. Kato, S. Malace, S. Nagao, S. N. Nakamura, S. Randeniya, S. Wells, S. Zhamkochyan (HKS (JLab E01-011) Collaboration), T. Gogami, T. Horn, T. Maruta, T. Miyoshi, T. Navasardyan, T. Petkovic, T. Seva, T. Takahashi, V. Dharmawardane, V. M. Rodriguez, V. Tadevosyan, V. Tvaskis, W. Luo, W. Vulcan, Y. Fujii, Y. Han, Y. Okayasu, Y. Sato, Y. Song","submitted_at":"2012-07-03T04:47:14Z","abstract_excerpt":"An experiment with a newly developed high-resolution kaon spectrometer (HKS) and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson Lab (JLab). The ground state of a neutron-rich hypernucleus, He 7 Lambda, was observed for the first time with the (e,e'K+) reaction with an energy resolution of ~0.6 MeV. This resolution is the best reported to date for hypernuclear reaction spectroscopy. The he 7 Lambda binding energy supplies the last missing information of the A=7, T=1 hypernuclear iso-triplet, providing a new input for the charge symmetry breakin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.0571","kind":"arxiv","version":4},"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":"1207.0571","created_at":"2026-05-18T01:56:35.471206+00:00"},{"alias_kind":"arxiv_version","alias_value":"1207.0571v4","created_at":"2026-05-18T01:56:35.471206+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.0571","created_at":"2026-05-18T01:56:35.471206+00:00"},{"alias_kind":"pith_short_12","alias_value":"OLSIFI4SBWQF","created_at":"2026-05-18T12:27:16.716162+00:00"},{"alias_kind":"pith_short_16","alias_value":"OLSIFI4SBWQFFF7O","created_at":"2026-05-18T12:27:16.716162+00:00"},{"alias_kind":"pith_short_8","alias_value":"OLSIFI4S","created_at":"2026-05-18T12:27:16.716162+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/OLSIFI4SBWQFFF7OVHVRP2RSNJ","json":"https://pith.science/pith/OLSIFI4SBWQFFF7OVHVRP2RSNJ.json","graph_json":"https://pith.science/api/pith-number/OLSIFI4SBWQFFF7OVHVRP2RSNJ/graph.json","events_json":"https://pith.science/api/pith-number/OLSIFI4SBWQFFF7OVHVRP2RSNJ/events.json","paper":"https://pith.science/paper/OLSIFI4S"},"agent_actions":{"view_html":"https://pith.science/pith/OLSIFI4SBWQFFF7OVHVRP2RSNJ","download_json":"https://pith.science/pith/OLSIFI4SBWQFFF7OVHVRP2RSNJ.json","view_paper":"https://pith.science/paper/OLSIFI4S","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1207.0571&json=true","fetch_graph":"https://pith.science/api/pith-number/OLSIFI4SBWQFFF7OVHVRP2RSNJ/graph.json","fetch_events":"https://pith.science/api/pith-number/OLSIFI4SBWQFFF7OVHVRP2RSNJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OLSIFI4SBWQFFF7OVHVRP2RSNJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OLSIFI4SBWQFFF7OVHVRP2RSNJ/action/storage_attestation","attest_author":"https://pith.science/pith/OLSIFI4SBWQFFF7OVHVRP2RSNJ/action/author_attestation","sign_citation":"https://pith.science/pith/OLSIFI4SBWQFFF7OVHVRP2RSNJ/action/citation_signature","submit_replication":"https://pith.science/pith/OLSIFI4SBWQFFF7OVHVRP2RSNJ/action/replication_record"}},"created_at":"2026-05-18T01:56:35.471206+00:00","updated_at":"2026-05-18T01:56:35.471206+00:00"}