{"paper":{"title":"Can we measure $\\theta_{23}$ octant in 3+1 scheme?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","physics.ins-det"],"primary_cat":"hep-ph","authors_text":"Antonio Palazzo, Sabya Sachi Chatterjee, Sanjib Kumar Agarwalla","submitted_at":"2017-04-24T11:34:03Z","abstract_excerpt":"Current 3$\\nu$ global fits predict two degenerate solutions for $\\theta_{23}$: one lies in lower octant ($\\theta_{23} <\\pi/4$), and the other belongs to higher octant ($\\theta_{23} >\\pi/4$). Here, we study how the measurement of $\\theta_{23}$ octant would be affected in the upcoming Deep Underground Neutrino Experiment (DUNE) if there exist a light eV-scale sterile neutrino. We show that in 3+1 scheme, a new interference term in $\\nu_\\mu \\to \\nu_e$ oscillation probability can spoil the chances of measuring $\\theta_{23}$ octant completely."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.07151","kind":"arxiv","version":1},"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"}