{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"2bb85a05866d89e766b4f720149239bda6e242c93a96917e517fa0966b8ed068","created":"2026-10-03T07:18:05Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011","bb9ca2e2ee12d930d868121bebc8940dd59ec3d6c3bc44b9dfa4364bbd9a7a7b"],"salt":"9d10e84f0400c350c98ec3f0d60f1a1e3e667e5e1a4158961245348259f7f44b","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"hep.hierarchy-problem.cosmological-selection","kind":"phenomenon","literature_status":"open","n":"1","parents":[{"note":"","parent_revision":"bb9ca2e2ee12d930d868121bebc8940dd59ec3d6c3bc44b9dfa4364bbd9a7a7b","relation":"special_case"}],"plain":"Instead of new particles at the TeV scale, the Higgs mass might have been adjusted during the early universe by a slowly evolving field, or selected among many possible universes. Such ideas predict light, weakly coupled particles instead of heavy ones.","posed_since":"2015","precise":"Assess mechanisms in which v is fixed dynamically by cosmological evolution (relaxion scanning of $m_h^{2}$, NNaturalness, crunching of regions with large v) rather than by TeV-scale symmetry. An answer is a consistent model that reproduces $v = 246\\,\\mathrm{GeV}$ without large tuning and an experimental signature (for example relaxion-Higgs mixing or fifth forces) that can confirm or exclude it.","problem_ref":null,"references":"","settled_by":"Detection or exclusion of the light scalar predicted by relaxation models through Higgs-mixing searches, fifth-force tests and rare-decay searches across its allowed mass range.","status_note":"Relaxion proposals date from 2015; consistent models exist but require long inflation or other non-minimal features, and none has a confirmed signature.","title":"Is the weak scale set by cosmological dynamics or selection?","topic_ref":"8622c0dec999e805d01cd4946f0499e6b2c80d3b2ce5878ffd4bc45976a8b66d"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"c31cad323e137ee949aa9b23e010c7d712c0bba2395c6bb90f8a74a0ce06cd86","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"8ebea19bf74baadd00e250855e7596506325f1c7cd4a47721f89676fbe306d46","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"uzwHvBEge7RhMSP04Y6TYjK2VGQIlWyZHhRlSxH1DaHN6BfVLsfDpUFSVxT85vgZ6RU-d4GWpOdFzlnkr153CA"},"schema":"pubphys.envelope/1"},"record_hash":"c31cad323e137ee949aa9b23e010c7d712c0bba2395c6bb90f8a74a0ce06cd86","leaf_index":1549}