{"paper":{"title":"Cosmic Collider Gravitational Waves sourced by Right-handed Neutrino production from Bubbles: Testing Seesaw, Leptogenesis and Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Bubble collisions during a first-order phase transition produce right-handed neutrinos that source novel low-frequency gravitational waves while explaining dark matter or leptogenesis.","cross_cats":["gr-qc","hep-ph","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"Anish Ghoshal, Pratyay Pal","submitted_at":"2026-01-05T18:57:49Z","abstract_excerpt":"We study a minimal type-I seesaw framework in which a first-order phase transition (FOPT), driven by a singlet scalar, produces right-handed neutrinos (RHNs) through bubble collisions, realizing a cosmic-scale collider that probes ultra-high energy scales. The resulting RHN distribution sources novel low-frequency gravitational-waves (GWs) in addition to the standard bubble-collision contribution. A stable lightest RHN can account for the observed dark matter (DM) relic abundance for masses as low as $M_{1} \\equiv m_{\\rm DM} \\gtrsim 10^{6}\\,\\mathrm{GeV}$, with the associated novel GW signal ac"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The resulting RHN distribution sources novel low-frequency gravitational-waves (GWs) in addition to the standard bubble-collision contribution. A stable lightest RHN can account for the observed dark matter (DM) relic abundance for masses as low as M1 ≳ 10^6 GeV, with the associated novel GW signal accessible in LISA, ET and upcoming LVK detectors.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The assumption that bubble collisions during the singlet-driven first-order phase transition produce a specific non-thermal RHN distribution whose subsequent evolution yields both the claimed GW spectrum and the required relic abundances or baryon asymmetry without additional tuning.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Bubble collisions in a seesaw model produce right-handed neutrinos that source novel gravitational waves detectable by LISA, ET, and LVK while allowing the lightest RHN to explain dark matter or enable leptogenesis.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Bubble collisions during a first-order phase transition produce right-handed neutrinos that source novel low-frequency gravitational waves while explaining dark matter or leptogenesis.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"5583d06a3354cea1ec973480e7e277fc50dcb6c37fda50b398300bd9e4a93fc3"},"source":{"id":"2601.02458","kind":"arxiv","version":3},"verdict":{"id":"c120424a-b8eb-4600-80ac-00ea4bce0248","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-16T17:25:51.470894Z","strongest_claim":"The resulting RHN distribution sources novel low-frequency gravitational-waves (GWs) in addition to the standard bubble-collision contribution. A stable lightest RHN can account for the observed dark matter (DM) relic abundance for masses as low as M1 ≳ 10^6 GeV, with the associated novel GW signal accessible in LISA, ET and upcoming LVK detectors.","one_line_summary":"Bubble collisions in a seesaw model produce right-handed neutrinos that source novel gravitational waves detectable by LISA, ET, and LVK while allowing the lightest RHN to explain dark matter or enable leptogenesis.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The assumption that bubble collisions during the singlet-driven first-order phase transition produce a specific non-thermal RHN distribution whose subsequent evolution yields both the claimed GW spectrum and the required relic abundances or baryon asymmetry without additional tuning.","pith_extraction_headline":"Bubble collisions during a first-order phase transition produce right-handed neutrinos that source novel low-frequency gravitational waves while explaining dark matter or leptogenesis."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2601.02458/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":279,"sample":[{"doi":"","year":null,"title":"2↔2Scattering :Scattering processes such asLL↔HH,LH↔χϕetc can contribute to mixing of the asymmetries in both sectors and alter final asymmetries. 39 In the narrow width approximation with Γ tot ≪M 1 ","work_id":"51b7115d-54ce-47d4-abad-bd9845ab68a7","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"Note this masses enter in the seesaw expression in Eq","work_id":"76e6fad7-54be-4125-832c-ee3f00b0b930","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1983,"title":"C. J. Hogan, Phys. Lett. B133, 172 (1983)","work_id":"c03ed693-0da8-43da-b126-df56846334c2","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1984,"title":"E. Witten, Phys. Rev. D30, 272 (1984)","work_id":"3c66b18f-bfba-4535-8f0f-97d385088c1a","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1986,"title":"C. J. Hogan, Mon. Not. Roy. Astron. Soc.218, 629 (1986)","work_id":"67def84d-8926-4308-bb5a-517d7fabdd6b","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":279,"snapshot_sha256":"329385eab3b04b10d9521814ff49b938852c3a3bc68af11d5da9f23d4b39638b","internal_anchors":93},"formal_canon":{"evidence_count":2,"snapshot_sha256":"e54544d8b6e7faa6ec6f0c23b541247ffa3b1ff572f1f36c2e94d0610ffd8d94"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}