{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:T7M2NSFM6WKC253GL2BJVMNR7J","short_pith_number":"pith:T7M2NSFM","schema_version":"1.0","canonical_sha256":"9fd9a6c8acf5942d77665e829ab1b1fa6a01c895c9c6570a3cc39cd74e8a6712","source":{"kind":"arxiv","id":"1907.00114","version":2},"attestation_state":"computed","paper":{"title":"Direct observation of proton emission in 11Be","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Babu, A.B. Garnsworthy, B. Kootte, B. Olaizola, C. Andreoiu, C. Dalitz, C.E. Svensson, C. Santamaria, D. Bazin, D. Yates, E. Dunling, G. Potel, J.S. Randhawa, K. G. Leach, L. Atar, M. Alcorta, M. Anholm, M. Bowry, M. Cortesi, M. Holl, M. Horoi, N. Bernier, N. Watwood, P. \\v{S}iuryte, R. Caballero-Folch, R. Umashankar, S. Beceiro-Novo, S. S. Bhattacharjee, T. Ahn, V. Zelevinsky, W. Mittig, Y. Ayyad, Y. Saito","submitted_at":"2019-06-28T22:59:49Z","abstract_excerpt":"The elusive $\\beta^-\\text{p}^+$ decay was observed in $^{11}$Be by directly measuring the emitted protons and their energy distribution for the first time with the prototype Active Target Time Projection Chamber (pAT-TPC) in an experiment performed at ISAC-TRIUMF. The measured $\\beta^-\\text{p}^+$ branching ratio is orders of magnitude larger than any previous theoretical model predicted. This can be explained by the presence of a narrow resonance in $^{11}$B above the proton separation energy."},"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":"1907.00114","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2019-06-28T22:59:49Z","cross_cats_sorted":[],"title_canon_sha256":"48cf485425136ed67aa23cd7d687101eb70ed8b702c58162dd7bff64685cc7a5","abstract_canon_sha256":"37056073165509eb73b908ea9ace99e2ec8116311b1ca1532b3b5e22b2fb3792"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:06:47.510708Z","signature_b64":"qV7K8rZZ+rLFOl83FSveFtQvbo2Ji1RkN7KY470Vv3ZwQsZtL+02IgyTylltd9+RFd5qTWOWGLWZG/JQSVpIAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9fd9a6c8acf5942d77665e829ab1b1fa6a01c895c9c6570a3cc39cd74e8a6712","last_reissued_at":"2026-07-05T00:06:47.510156Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:06:47.510156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Direct observation of proton emission in 11Be","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Babu, A.B. Garnsworthy, B. Kootte, B. Olaizola, C. Andreoiu, C. Dalitz, C.E. Svensson, C. Santamaria, D. Bazin, D. Yates, E. Dunling, G. Potel, J.S. Randhawa, K. G. Leach, L. Atar, M. Alcorta, M. Anholm, M. Bowry, M. Cortesi, M. Holl, M. Horoi, N. Bernier, N. Watwood, P. \\v{S}iuryte, R. Caballero-Folch, R. Umashankar, S. Beceiro-Novo, S. S. Bhattacharjee, T. Ahn, V. Zelevinsky, W. Mittig, Y. Ayyad, Y. Saito","submitted_at":"2019-06-28T22:59:49Z","abstract_excerpt":"The elusive $\\beta^-\\text{p}^+$ decay was observed in $^{11}$Be by directly measuring the emitted protons and their energy distribution for the first time with the prototype Active Target Time Projection Chamber (pAT-TPC) in an experiment performed at ISAC-TRIUMF. The measured $\\beta^-\\text{p}^+$ branching ratio is orders of magnitude larger than any previous theoretical model predicted. This can be explained by the presence of a narrow resonance in $^{11}$B above the proton separation energy."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.00114","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1907.00114/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1907.00114","created_at":"2026-07-05T00:06:47.510231+00:00"},{"alias_kind":"arxiv_version","alias_value":"1907.00114v2","created_at":"2026-07-05T00:06:47.510231+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.00114","created_at":"2026-07-05T00:06:47.510231+00:00"},{"alias_kind":"pith_short_12","alias_value":"T7M2NSFM6WKC","created_at":"2026-07-05T00:06:47.510231+00:00"},{"alias_kind":"pith_short_16","alias_value":"T7M2NSFM6WKC253G","created_at":"2026-07-05T00:06:47.510231+00:00"},{"alias_kind":"pith_short_8","alias_value":"T7M2NSFM","created_at":"2026-07-05T00:06:47.510231+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/T7M2NSFM6WKC253GL2BJVMNR7J","json":"https://pith.science/pith/T7M2NSFM6WKC253GL2BJVMNR7J.json","graph_json":"https://pith.science/api/pith-number/T7M2NSFM6WKC253GL2BJVMNR7J/graph.json","events_json":"https://pith.science/api/pith-number/T7M2NSFM6WKC253GL2BJVMNR7J/events.json","paper":"https://pith.science/paper/T7M2NSFM"},"agent_actions":{"view_html":"https://pith.science/pith/T7M2NSFM6WKC253GL2BJVMNR7J","download_json":"https://pith.science/pith/T7M2NSFM6WKC253GL2BJVMNR7J.json","view_paper":"https://pith.science/paper/T7M2NSFM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1907.00114&json=true","fetch_graph":"https://pith.science/api/pith-number/T7M2NSFM6WKC253GL2BJVMNR7J/graph.json","fetch_events":"https://pith.science/api/pith-number/T7M2NSFM6WKC253GL2BJVMNR7J/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/T7M2NSFM6WKC253GL2BJVMNR7J/action/timestamp_anchor","attest_storage":"https://pith.science/pith/T7M2NSFM6WKC253GL2BJVMNR7J/action/storage_attestation","attest_author":"https://pith.science/pith/T7M2NSFM6WKC253GL2BJVMNR7J/action/author_attestation","sign_citation":"https://pith.science/pith/T7M2NSFM6WKC253GL2BJVMNR7J/action/citation_signature","submit_replication":"https://pith.science/pith/T7M2NSFM6WKC253GL2BJVMNR7J/action/replication_record"}},"created_at":"2026-07-05T00:06:47.510231+00:00","updated_at":"2026-07-05T00:06:47.510231+00:00"}