{"schema":"pubphys.bundle/1","record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"9b8b569963b2dfc21719e63fda3ac22c78c9c34dbef5a5156515fd83f6c4617a","created":"2026-10-03T07:18:05Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"324fbe86566bce9130bb00a35f5465836fb9c16153946e16cacf70af6dc581b3","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"hep.hierarchy-problem.origin-weak-scale","kind":"phenomenon","literature_status":"open","n":"1","parents":[],"plain":"The Higgs field sets the masses of most particles at about $246\\,\\mathrm{GeV}$, roughly 1e17 times below the scale where gravity becomes strong. No known principle explains this huge gap without extreme fine cancellations.","posed_since":"1979","precise":"In the SM with a cutoff $\\Lambda$, the top loop gives $\\delta m_h^{2} \\sim -(3 y_t^{2}/(8 \\pi^{2})) \\Lambda^{2}$, so $m_h = 125\\,\\mathrm{GeV}$ with $\\Lambda \\sim M_{\\mathrm{Pl}} \\sim 1.2e19\\,\\mathrm{GeV}$ requires cancellation to about 1 part in 1e33. An answer is a mechanism (symmetry, compositeness, dynamics or selection) that yields $v = 246\\,\\mathrm{GeV}$ with at most mild tuning and is consistent with all LHC data.","problem_ref":null,"references":"","settled_by":"Discovery at a collider of the particles or form factors predicted by a specific mechanism, or a calculable non-collider mechanism confirmed by its own distinct predictions.","status_note":"LHC Run 2 and early Run 3 data (to 2025) show no top partners, superpartners or composite resonances near 1 TeV, pushing simple natural models to percent-level tuning or worse.","title":"Why is the electroweak scale so far below the Planck 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