{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"5c05c843721eaee72e4f35ea8690b758c9b66ad2631eddb4c54830f4ef591f23","created":"2026-10-03T07:18:05Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"5f61dc960a9a52a2fc22dda0e7050b524715366b54cef7d5ee74752a47200402","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"hep.neutrino-mass.mass-origin","kind":"phenomenon","literature_status":"open","n":"1","parents":[],"plain":"Neutrinos are at least a million times lighter than the electron. They could get mass like other particles but with a tiny coupling, or through a seesaw with very heavy partner particles.","posed_since":"1998","precise":"Identify the origin of $m_{\\nu} < \\sim 0.1\\ \\mathrm{eV}$: Dirac Yukawas with $y \\sim 1e-12$ plus right-handed neutrinos, the type I, II or III seesaw ($m_{\\nu} \\sim y^2 v^2 / M$), or radiative and low-scale mechanisms. An answer is the mechanism together with its scale, confirmed by a signature such as lepton number violation or heavy neutral leptons.","problem_ref":null,"references":"","settled_by":"Observation of neutrinoless double beta decay plus identification of the associated new states or interactions at colliders or in rare decays.","status_note":"","title":"What mechanism generates neutrino masses?","topic_ref":"bf623edd63337963e5d02d169573ea3befbc30edcb8ee813200a0e5d35d5421d"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"803f6c61383951a1e03e0a6e06849793a7e488ac6cf7c0b6df95233710df0a6b","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"0bf78586dedbfe00044d3b9ca22ecb966d87c8768c07c3735d042e9467eae9da","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"I3ahkbxG5O4GnuR8O5C-a7bPEYCffEVYPtWqNBAh0bD8cMvgxJuEbmnul85kqeCJPZ-97QCJmI-fpwAJaFTqCw"},"schema":"pubphys.envelope/1"},"record_hash":"803f6c61383951a1e03e0a6e06849793a7e488ac6cf7c0b6df95233710df0a6b","leaf_index":1573}