{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"644cb84cf6dbafe7febb03bd9e54701d39aa19c6b8a8d385cd126d0db49087e7","created":"2026-10-03T07:18:05Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011","e40db54d49b7bbcae272f1539b8bcc9bf6317cdea1fb76b8ba7ab069c56691ac"],"salt":"a9e688c4405ca7763490c1788fa2119620fb596a9b6f6b9bbdee3104c9afe04d","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"identification","assisted_by":[],"external_id":"hep.sterile-neutrino-anomalies.miniboone-excess","kind":"well-posed","literature_status":"open","n":"1","parents":[{"note":"","parent_revision":"e40db54d49b7bbcae272f1539b8bcc9bf6317cdea1fb76b8ba7ab069c56691ac","relation":"special_case"}],"plain":"MiniBooNE saw extra events at low energy that look like electrons, but its detector could not tell electrons from photons.","posed_since":"","precise":"Identify whether the MiniBooNE low-energy excess (reconstructed $E_{\\nu}$ between 200 and 475 MeV) is from electrons, single photons, e+e- pairs or mismodeled backgrounds such as $\\Delta \\to \\mathrm{N}\\gamma$ and $\\pi0$ misidentification. An answer assigns the excess to a specific final state with $\\ge 3\\sigma$ confidence.","problem_ref":null,"references":"","settled_by":"Liquid-argon TPC measurements in the same beam that separate electrons from photons by dE/dx (MicroBooNE, SBND, ICARUS).","status_note":"MicroBooNE results (2021 to 2025) disfavor $\\nu_e$ and $\\Delta$ radiative explanations of the full excess, leaving its source unidentified.","title":"What is the source of the MiniBooNE low-energy excess?","topic_ref":"7c3a93300e8710b41f3d7fcb0f1c9a791d835219d51f56a2ebbdc44a8de8988d"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"ed81aa13e5e1e66f599d674a277537be8b1286448cbc759682b6af0faa653bef","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"5cac94e3caa158ab786450ef7ed32cdc50c7ca3ea70be1d908435d07c9bc0880","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"6iMuq7Rj89mK2yYTAgQEA0OHGnw4dwZojVzB1bADd2XPsARIMz7fZS7rz3KM24axfMjrvckYF-SjmYcWlx2rCw"},"schema":"pubphys.envelope/1"},"record_hash":"ed81aa13e5e1e66f599d674a277537be8b1286448cbc759682b6af0faa653bef","leaf_index":1579}