{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:C2JCAFZB4INU7Q4JODMORPKRCF","short_pith_number":"pith:C2JCAFZB","schema_version":"1.0","canonical_sha256":"1692201721e21b4fc38970d8e8bd51114f787b1e8cb89fd51caa2f5960f8dc9c","source":{"kind":"arxiv","id":"hep-ph/0303087","version":3},"attestation_state":"computed","paper":{"title":"Flavour Changing Neutral Currents in Intersecting Brane Models","license":"","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"J. Santiago, M. Masip, S. Abel","submitted_at":"2003-03-11T20:59:45Z","abstract_excerpt":"Intersecting D-brane models provide an attractive explanation of family replication in the context of string theory. We show, however, that the localization of fermion families at different brane intersections in the extra dimensions introduces flavour changing neutral currents mediated by the Kaluza-Klein excitations of the gauge fields. This is a generic feature in these models, and it implies stringent bounds on the mass of the lightest Kaluza-Klein modes (becoming severe when the compactification radii are larger than the string length). We present the full string calculation of four-fermi"},"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":"hep-ph/0303087","kind":"arxiv","version":3},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2003-03-11T20:59:45Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"c07fb0c728a3ff70837f475615a6b1bbf24768346812cc03019c16000f786e21","abstract_canon_sha256":"48e15c5a820579389d3c8d71362634e9b514bc3c30b2b651b35534ac8edc476c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:40:32.198712Z","signature_b64":"P/Bb55Qmwo5MwkIZQdlAla98wkY4eRxUBsrYokRh0OwzscN39XMm97w5+3jgccQAVhI+McDrUQgrVBO1N3aaAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1692201721e21b4fc38970d8e8bd51114f787b1e8cb89fd51caa2f5960f8dc9c","last_reissued_at":"2026-07-04T16:40:32.198347Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:40:32.198347Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Flavour Changing Neutral Currents in Intersecting Brane Models","license":"","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"J. Santiago, M. Masip, S. Abel","submitted_at":"2003-03-11T20:59:45Z","abstract_excerpt":"Intersecting D-brane models provide an attractive explanation of family replication in the context of string theory. We show, however, that the localization of fermion families at different brane intersections in the extra dimensions introduces flavour changing neutral currents mediated by the Kaluza-Klein excitations of the gauge fields. This is a generic feature in these models, and it implies stringent bounds on the mass of the lightest Kaluza-Klein modes (becoming severe when the compactification radii are larger than the string length). We present the full string calculation of four-fermi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0303087","kind":"arxiv","version":3},"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/hep-ph/0303087/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":"hep-ph/0303087","created_at":"2026-07-04T16:40:32.198416+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0303087v3","created_at":"2026-07-04T16:40:32.198416+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0303087","created_at":"2026-07-04T16:40:32.198416+00:00"},{"alias_kind":"pith_short_12","alias_value":"C2JCAFZB4INU","created_at":"2026-07-04T16:40:32.198416+00:00"},{"alias_kind":"pith_short_16","alias_value":"C2JCAFZB4INU7Q4J","created_at":"2026-07-04T16:40:32.198416+00:00"},{"alias_kind":"pith_short_8","alias_value":"C2JCAFZB","created_at":"2026-07-04T16:40:32.198416+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/C2JCAFZB4INU7Q4JODMORPKRCF","json":"https://pith.science/pith/C2JCAFZB4INU7Q4JODMORPKRCF.json","graph_json":"https://pith.science/api/pith-number/C2JCAFZB4INU7Q4JODMORPKRCF/graph.json","events_json":"https://pith.science/api/pith-number/C2JCAFZB4INU7Q4JODMORPKRCF/events.json","paper":"https://pith.science/paper/C2JCAFZB"},"agent_actions":{"view_html":"https://pith.science/pith/C2JCAFZB4INU7Q4JODMORPKRCF","download_json":"https://pith.science/pith/C2JCAFZB4INU7Q4JODMORPKRCF.json","view_paper":"https://pith.science/paper/C2JCAFZB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/0303087&json=true","fetch_graph":"https://pith.science/api/pith-number/C2JCAFZB4INU7Q4JODMORPKRCF/graph.json","fetch_events":"https://pith.science/api/pith-number/C2JCAFZB4INU7Q4JODMORPKRCF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/C2JCAFZB4INU7Q4JODMORPKRCF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/C2JCAFZB4INU7Q4JODMORPKRCF/action/storage_attestation","attest_author":"https://pith.science/pith/C2JCAFZB4INU7Q4JODMORPKRCF/action/author_attestation","sign_citation":"https://pith.science/pith/C2JCAFZB4INU7Q4JODMORPKRCF/action/citation_signature","submit_replication":"https://pith.science/pith/C2JCAFZB4INU7Q4JODMORPKRCF/action/replication_record"}},"created_at":"2026-07-04T16:40:32.198416+00:00","updated_at":"2026-07-04T16:40:32.198416+00:00"}