{"schema":"pubphys.bundle/1","record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"7852de74fd6490098c3b2e073a3becb1abef0a543f18d9dc2aa2d654a1bc88dc","created":"2026-10-03T07:17:54Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"ca1a687e70d648b7714c8cf3b30c4da2abcf1699ad808077ff769787875e5c37","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"yes-no","assisted_by":[],"external_id":"astro.core-collapse-supernovae.flavor-conversion","kind":"well-posed","literature_status":"open","n":"1","parents":[],"plain":"Neutrinos come in three types (flavors) and, in the dense core, they can switch type collectively, which may change how much energy they deposit behind the shock.","posed_since":"","precise":"In the neutrino-decoupling region, neutrino-neutrino forward scattering drives fast flavor instabilities wherever the electron-lepton-number angular distribution has a crossing. Determine whether including flavor conversion self-consistently in multi-dimensional simulations changes shock-revival time, explosion energy or ejecta electron fraction by more than $\\sim 10$ percent. Answer: yes or no with quantified effects for representative progenitors.","problem_ref":null,"references":"","settled_by":"Multi-dimensional simulations with validated subgrid or direct flavor-evolution schemes, compared with runs without conversion.","status_note":"","title":"Does neutrino flavor conversion change supernova explosion 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