{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:CELGADPRWHF4VISN5LESJX7TQA","short_pith_number":"pith:CELGADPR","schema_version":"1.0","canonical_sha256":"1116600df1b1cbcaa24deac924dff38036946e7f902b24cb80cdd0d454010dd5","source":{"kind":"arxiv","id":"0712.3839","version":4},"attestation_state":"computed","paper":{"title":"Search for Theta+ via K+p -> pi+X reaction with a 1.2 GeV/c K+ beam","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"D. Nakajima (for the KEK-PS E559 Collaboration), K. Miwa, S. Dairaku","submitted_at":"2007-12-22T08:46:35Z","abstract_excerpt":"The Theta+ was searched for via the K+p -> pi+X reaction using the 1.2 GeV/c K+ beam at the K6 beam line of the KEK-PS 12 GeV Proton Synchrotron. In the missing mass spectrum of the K+p -> pi+X reaction, no clear peak structure was observed. Therefore a 90 % C.L. upper limit of 3.5 ub/sr was derived for the differential cross section averaged over 2degree to 22degree in the laboratory frame of the K+p -> pi+Theta+ reaction. This upper limit is much smaller than the theoretical calculation for the t-channel process where a K0* is exchanged.\n  From the present result, either the t-channel proces"},"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":"0712.3839","kind":"arxiv","version":4},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2007-12-22T08:46:35Z","cross_cats_sorted":[],"title_canon_sha256":"7d3198d15d0774605858758605af784d7ff418f9fe4edd1d41bfe00fa0d218c0","abstract_canon_sha256":"a8c65c8ecd0c4e7aa66515b6c523e8d884fb96de23960027c2f7c37d3e6fec7c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:54:36.346216Z","signature_b64":"9BmmhsA8pAtHi5Uz/CMxTIIFbzAVKD9980wLfltY3Yl7MAJQCrrLckeBu5IRg6xpHHsPwP7Mp9oeTaWkWem1AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1116600df1b1cbcaa24deac924dff38036946e7f902b24cb80cdd0d454010dd5","last_reissued_at":"2026-07-04T23:54:36.345678Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:54:36.345678Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Search for Theta+ via K+p -> pi+X reaction with a 1.2 GeV/c K+ beam","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"D. Nakajima (for the KEK-PS E559 Collaboration), K. Miwa, S. Dairaku","submitted_at":"2007-12-22T08:46:35Z","abstract_excerpt":"The Theta+ was searched for via the K+p -> pi+X reaction using the 1.2 GeV/c K+ beam at the K6 beam line of the KEK-PS 12 GeV Proton Synchrotron. In the missing mass spectrum of the K+p -> pi+X reaction, no clear peak structure was observed. Therefore a 90 % C.L. upper limit of 3.5 ub/sr was derived for the differential cross section averaged over 2degree to 22degree in the laboratory frame of the K+p -> pi+Theta+ reaction. This upper limit is much smaller than the theoretical calculation for the t-channel process where a K0* is exchanged.\n  From the present result, either the t-channel proces"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.3839","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0712.3839/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":"0712.3839","created_at":"2026-07-04T23:54:36.345763+00:00"},{"alias_kind":"arxiv_version","alias_value":"0712.3839v4","created_at":"2026-07-04T23:54:36.345763+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.3839","created_at":"2026-07-04T23:54:36.345763+00:00"},{"alias_kind":"pith_short_12","alias_value":"CELGADPRWHF4","created_at":"2026-07-04T23:54:36.345763+00:00"},{"alias_kind":"pith_short_16","alias_value":"CELGADPRWHF4VISN","created_at":"2026-07-04T23:54:36.345763+00:00"},{"alias_kind":"pith_short_8","alias_value":"CELGADPR","created_at":"2026-07-04T23:54:36.345763+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2411.13292","citing_title":"Pentaquarks and Maxim V. Polyakov","ref_index":43,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA","json":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA.json","graph_json":"https://pith.science/api/pith-number/CELGADPRWHF4VISN5LESJX7TQA/graph.json","events_json":"https://pith.science/api/pith-number/CELGADPRWHF4VISN5LESJX7TQA/events.json","paper":"https://pith.science/paper/CELGADPR"},"agent_actions":{"view_html":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA","download_json":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA.json","view_paper":"https://pith.science/paper/CELGADPR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0712.3839&json=true","fetch_graph":"https://pith.science/api/pith-number/CELGADPRWHF4VISN5LESJX7TQA/graph.json","fetch_events":"https://pith.science/api/pith-number/CELGADPRWHF4VISN5LESJX7TQA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA/action/storage_attestation","attest_author":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA/action/author_attestation","sign_citation":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA/action/citation_signature","submit_replication":"https://pith.science/pith/CELGADPRWHF4VISN5LESJX7TQA/action/replication_record"}},"created_at":"2026-07-04T23:54:36.345763+00:00","updated_at":"2026-07-04T23:54:36.345763+00:00"}