{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1999:TSBC6NQB3WQ434YIXUWBL2HBJN","short_pith_number":"pith:TSBC6NQB","schema_version":"1.0","canonical_sha256":"9c822f3601dda1cdf308bd2c15e8e14b4fea29fc65be1be7a566cbc549869667","source":{"kind":"arxiv","id":"hep-ph/9905381","version":1},"attestation_state":"computed","paper":{"title":"Nearly degenerate neutrinos, Supersymmetry and radiative corrections","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Ibarra, I. Navarro, J.A. Casas, J.R. Espinosa","submitted_at":"1999-05-18T23:41:55Z","abstract_excerpt":"If neutrinos are to play a relevant cosmological role, they must be essentially degenerate with a mass matrix of the bimaximal mixing type. We study this scenario in the MSSM framework, finding that if neutrino masses are produced by a see-saw mechanism, the radiative corrections give rise to mass splittings and mixing angles that can accommodate the atmospheric and the (large angle MSW) solar neutrino oscillations. This provides a natural origin for the $\\Delta m^2_{sol} << \\Delta m^2_{atm}$ hierarchy. On the other hand, the vacuum oscillation solution to the solar neutrino problem is always "},"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/9905381","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"1999-05-18T23:41:55Z","cross_cats_sorted":[],"title_canon_sha256":"d63980d311d5259618cdc3ddbe628a89d38c7e312d92521234591643dc09e1fe","abstract_canon_sha256":"c6f2d14831dd956fa17e1d295d7a8d53f12a95d7c728eb76a67cccfe114b8b34"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:14:17.445357Z","signature_b64":"eJhClIv2jg1fwZKxoi0TPAjbZAxBmyQJoZYC6pJYuJ1l6dQGQnRZcZiHZBezJtIPWscIYCxiebPYqDUHPeFmCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9c822f3601dda1cdf308bd2c15e8e14b4fea29fc65be1be7a566cbc549869667","last_reissued_at":"2026-07-04T16:14:17.444939Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:14:17.444939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nearly degenerate neutrinos, Supersymmetry and radiative corrections","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Ibarra, I. Navarro, J.A. Casas, J.R. Espinosa","submitted_at":"1999-05-18T23:41:55Z","abstract_excerpt":"If neutrinos are to play a relevant cosmological role, they must be essentially degenerate with a mass matrix of the bimaximal mixing type. We study this scenario in the MSSM framework, finding that if neutrino masses are produced by a see-saw mechanism, the radiative corrections give rise to mass splittings and mixing angles that can accommodate the atmospheric and the (large angle MSW) solar neutrino oscillations. This provides a natural origin for the $\\Delta m^2_{sol} << \\Delta m^2_{atm}$ hierarchy. On the other hand, the vacuum oscillation solution to the solar neutrino problem is always "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9905381","kind":"arxiv","version":1},"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/9905381/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/9905381","created_at":"2026-07-04T16:14:17.445003+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9905381v1","created_at":"2026-07-04T16:14:17.445003+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9905381","created_at":"2026-07-04T16:14:17.445003+00:00"},{"alias_kind":"pith_short_12","alias_value":"TSBC6NQB3WQ4","created_at":"2026-07-04T16:14:17.445003+00:00"},{"alias_kind":"pith_short_16","alias_value":"TSBC6NQB3WQ434YI","created_at":"2026-07-04T16:14:17.445003+00:00"},{"alias_kind":"pith_short_8","alias_value":"TSBC6NQB","created_at":"2026-07-04T16:14:17.445003+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/TSBC6NQB3WQ434YIXUWBL2HBJN","json":"https://pith.science/pith/TSBC6NQB3WQ434YIXUWBL2HBJN.json","graph_json":"https://pith.science/api/pith-number/TSBC6NQB3WQ434YIXUWBL2HBJN/graph.json","events_json":"https://pith.science/api/pith-number/TSBC6NQB3WQ434YIXUWBL2HBJN/events.json","paper":"https://pith.science/paper/TSBC6NQB"},"agent_actions":{"view_html":"https://pith.science/pith/TSBC6NQB3WQ434YIXUWBL2HBJN","download_json":"https://pith.science/pith/TSBC6NQB3WQ434YIXUWBL2HBJN.json","view_paper":"https://pith.science/paper/TSBC6NQB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/9905381&json=true","fetch_graph":"https://pith.science/api/pith-number/TSBC6NQB3WQ434YIXUWBL2HBJN/graph.json","fetch_events":"https://pith.science/api/pith-number/TSBC6NQB3WQ434YIXUWBL2HBJN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TSBC6NQB3WQ434YIXUWBL2HBJN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TSBC6NQB3WQ434YIXUWBL2HBJN/action/storage_attestation","attest_author":"https://pith.science/pith/TSBC6NQB3WQ434YIXUWBL2HBJN/action/author_attestation","sign_citation":"https://pith.science/pith/TSBC6NQB3WQ434YIXUWBL2HBJN/action/citation_signature","submit_replication":"https://pith.science/pith/TSBC6NQB3WQ434YIXUWBL2HBJN/action/replication_record"}},"created_at":"2026-07-04T16:14:17.445003+00:00","updated_at":"2026-07-04T16:14:17.445003+00:00"}