{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2002:HBMP5JEREOQ5K2K3FAM3Y3A42X","short_pith_number":"pith:HBMP5JER","schema_version":"1.0","canonical_sha256":"3858fea49123a1d5695b2819bc6c1cd5e9400a08285d3c30d5e4a25f23b12982","source":{"kind":"arxiv","id":"hep-ph/0202239","version":2},"attestation_state":"computed","paper":{"title":"A lower bound on the right-handed neutrino mass from leptogenesis","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alejandro Ibarra, Sacha Davidson","submitted_at":"2002-02-25T22:30:54Z","abstract_excerpt":"In the seesaw model, the baryon asymmetry of the Universe can be generated by the decay of the lightest right-handed neutrino, nu_R. For a hierarchical spectrum of right-handed neutrinos, we show that there is a model independent upper bound on the CP asymmetry produced in these decays: epsilon < 3 m_{nu_3} M_{nu_R}/(8 pi <H_u>^2). This implies that epsilon and the mass M_{nu_R} of the lightest right-handed neutrino are not independent parameters, as is commonly assumed. If m_{nu_3} = sqrt{Delta m^2_{atm}} and the nu_R are produced thermally, then leptogenesis requires a reheat temperature of "},"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/0202239","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"hep-ph","submitted_at":"2002-02-25T22:30:54Z","cross_cats_sorted":[],"title_canon_sha256":"ce8dd59ed532696cc086ec0e14fd912bc496d1bf848376104ebd5d4701809488","abstract_canon_sha256":"3e7a8dc55ba25224d6ba114fe1938b5a8f283522df18956c42a60fdd96b5503e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:34:01.425825Z","signature_b64":"jW8elC01kCj4SR5F4bsv8/TNHXrhn7G0gwjOZFqXTZFLOfXB8h0cMJ360KUxRE/UYf2CUm7DB1BlbfdPER2uBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3858fea49123a1d5695b2819bc6c1cd5e9400a08285d3c30d5e4a25f23b12982","last_reissued_at":"2026-07-04T16:34:01.425466Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:34:01.425466Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A lower bound on the right-handed neutrino mass from leptogenesis","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alejandro Ibarra, Sacha Davidson","submitted_at":"2002-02-25T22:30:54Z","abstract_excerpt":"In the seesaw model, the baryon asymmetry of the Universe can be generated by the decay of the lightest right-handed neutrino, nu_R. For a hierarchical spectrum of right-handed neutrinos, we show that there is a model independent upper bound on the CP asymmetry produced in these decays: epsilon < 3 m_{nu_3} M_{nu_R}/(8 pi <H_u>^2). This implies that epsilon and the mass M_{nu_R} of the lightest right-handed neutrino are not independent parameters, as is commonly assumed. If m_{nu_3} = sqrt{Delta m^2_{atm}} and the nu_R are produced thermally, then leptogenesis requires a reheat temperature of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0202239","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/hep-ph/0202239/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/0202239","created_at":"2026-07-04T16:34:01.425528+00:00"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/0202239v2","created_at":"2026-07-04T16:34:01.425528+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/0202239","created_at":"2026-07-04T16:34:01.425528+00:00"},{"alias_kind":"pith_short_12","alias_value":"HBMP5JEREOQ5","created_at":"2026-07-04T16:34:01.425528+00:00"},{"alias_kind":"pith_short_16","alias_value":"HBMP5JEREOQ5K2K3","created_at":"2026-07-04T16:34:01.425528+00:00"},{"alias_kind":"pith_short_8","alias_value":"HBMP5JER","created_at":"2026-07-04T16:34:01.425528+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":26,"internal_anchor_count":18,"sample":[{"citing_arxiv_id":"2607.08663","citing_title":"Leptogenesis and Low Reheating Temperatures","ref_index":30,"is_internal_anchor":true},{"citing_arxiv_id":"2606.23787","citing_title":"Multi-peaked high-frequency gravitational waves from PBH-assisted leptogenesis","ref_index":19,"is_internal_anchor":true},{"citing_arxiv_id":"2606.22642","citing_title":"Radiative Lifting of $\\mathbb{Z}_3$ Domain-Wall Degeneracy in a Type-III Seesaw Model: Implications for Leptogenesis and Gravitational Waves","ref_index":88,"is_internal_anchor":true},{"citing_arxiv_id":"2606.11517","citing_title":"Probing TeV-Scale Inverse-Seesaw Leptogenesis and Majorana Dark Matter in $U(1)_{B-L}$ Models at Multi-TeV Muon Colliders","ref_index":54,"is_internal_anchor":true},{"citing_arxiv_id":"2606.02706","citing_title":"Majoron Dark Matter, High-Scale Seesaw, and Leptogenesis","ref_index":56,"is_internal_anchor":true},{"citing_arxiv_id":"2605.24163","citing_title":"Leptogenesis without on-shell right-handed neutrinos","ref_index":8,"is_internal_anchor":true},{"citing_arxiv_id":"2605.28728","citing_title":"Linking the Gauge Hierarchy with Neutrino Masses and Dark Matter via Two-step Cosmological Selection","ref_index":50,"is_internal_anchor":true},{"citing_arxiv_id":"2606.03448","citing_title":"Gravitino Freeze-In Dark Matter with an Additional Scalar Field","ref_index":44,"is_internal_anchor":true},{"citing_arxiv_id":"2601.15856","citing_title":"WIMP Dark Matter from a Natural Discrete Gauge Symmetry in the Standard Model","ref_index":26,"is_internal_anchor":true},{"citing_arxiv_id":"2503.10366","citing_title":"Does thermal leptogenesis in a canonical seesaw rely on initial memory?","ref_index":39,"is_internal_anchor":true},{"citing_arxiv_id":"2504.03837","citing_title":"Exploring Leptogenesis in the Era of First Order Electroweak Phase Transition","ref_index":22,"is_internal_anchor":true},{"citing_arxiv_id":"2605.18944","citing_title":"The Majoron Cosmological Window: Dark Matter and Thermal Leptogenesis","ref_index":146,"is_internal_anchor":true},{"citing_arxiv_id":"2506.23290","citing_title":"Type II Seesaw Leptogenesis in a Majoron background","ref_index":45,"is_internal_anchor":true},{"citing_arxiv_id":"2508.10103","citing_title":"Leptogenesis and neutrino mass with one right-handed neutrino and Higgs inflaton","ref_index":18,"is_internal_anchor":true},{"citing_arxiv_id":"2601.02458","citing_title":"Cosmic Collider Gravitational Waves sourced by Right-handed Neutrino production from Bubbles: Testing Seesaw, Leptogenesis and Dark Matter","ref_index":231,"is_internal_anchor":true},{"citing_arxiv_id":"2003.01100","citing_title":"The landscape of QCD axion models","ref_index":11,"is_internal_anchor":true},{"citing_arxiv_id":"2602.20237","citing_title":"Linking Leptogenesis and Asymmetric Dark Matter: A Testable Framework for Neutrino Mass and the Matter-Antimatter Asymmetry","ref_index":34,"is_internal_anchor":true},{"citing_arxiv_id":"2605.12946","citing_title":"Minimal Majoron Dark Matter","ref_index":45,"is_internal_anchor":true},{"citing_arxiv_id":"2605.09571","citing_title":"Einstein-Cartan pseudoscalaron inflation, reheating and nonthermal leptogenesis","ref_index":93,"is_internal_anchor":false},{"citing_arxiv_id":"2605.05304","citing_title":"Nonthermal leptogenesis via cosmological gravitational particle production is tested by inflationary gravitational waves","ref_index":54,"is_internal_anchor":false},{"citing_arxiv_id":"2605.00095","citing_title":"A Model of Annihilogenesis","ref_index":46,"is_internal_anchor":false},{"citing_arxiv_id":"2604.06493","citing_title":"Low-Scale Leptogenesis from Resonant Thermal Lepton Flavour Coherences","ref_index":20,"is_internal_anchor":false},{"citing_arxiv_id":"2604.04585","citing_title":"Predictions of Modular Symmetry Fixed Points on Neutrino Masses, Mixing, and Leptogenesis","ref_index":53,"is_internal_anchor":false},{"citing_arxiv_id":"2604.05362","citing_title":"Towards Testable Type-III Leptogenesis in Non-Standard Early Universe Scenarios","ref_index":23,"is_internal_anchor":false},{"citing_arxiv_id":"2604.19434","citing_title":"$SO(10)$-inspired leptogenesis","ref_index":30,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X","json":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X.json","graph_json":"https://pith.science/api/pith-number/HBMP5JEREOQ5K2K3FAM3Y3A42X/graph.json","events_json":"https://pith.science/api/pith-number/HBMP5JEREOQ5K2K3FAM3Y3A42X/events.json","paper":"https://pith.science/paper/HBMP5JER"},"agent_actions":{"view_html":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X","download_json":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X.json","view_paper":"https://pith.science/paper/HBMP5JER","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=hep-ph/0202239&json=true","fetch_graph":"https://pith.science/api/pith-number/HBMP5JEREOQ5K2K3FAM3Y3A42X/graph.json","fetch_events":"https://pith.science/api/pith-number/HBMP5JEREOQ5K2K3FAM3Y3A42X/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X/action/storage_attestation","attest_author":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X/action/author_attestation","sign_citation":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X/action/citation_signature","submit_replication":"https://pith.science/pith/HBMP5JEREOQ5K2K3FAM3Y3A42X/action/replication_record"}},"created_at":"2026-07-04T16:34:01.425528+00:00","updated_at":"2026-07-04T16:34:01.425528+00:00"}