{"paper":{"title":"Neutrino Mixing in a Democratic-Seesaw-Mass-Matrix Model","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Yoshio Koide","submitted_at":"1996-03-22T01:54:07Z","abstract_excerpt":"On the basis of a seesaw-type mass matrix model for quarks and leptons, $M_f \\simeq m_L M_F^{-1} m_R$, where $m_L\\propto m_R$ are universal for $f=u,d,\\nu$ and $e$ (up-quark-, down-quark-, neutrino- and charged lepton-sectors), and $M_F$ has a form [(unit matrix)+(democratic-type matrix)], neutrino masses and mixings are investigated. It is tried to understand a large $\\nu_\\mu$-$\\nu_\\tau$ mixing, i.e., $\\sin^2 2\\theta_{23}\\sim 1$, with $m_{\\nu 1} \\ll m_{\\nu 2} \\sim m_{\\nu 3}$, which has been suggested by the atmospheric neutrino data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9603376","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}