{"paper":{"title":"Effective Matter Flavor Conversion Mediated by Pseudo-Sterile States as the Possible Origin of Neutrino Oscillation Anomalies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"A new matter potential felt by sterile neutrinos reconciles multiple neutrino oscillation anomalies in a 3+1 model.","cross_cats":["astro-ph.CO","hep-ex"],"primary_cat":"hep-ph","authors_text":"Antonio Palazzo, Sabya Sachi Chatterjee","submitted_at":"2026-05-14T17:49:27Z","abstract_excerpt":"Neutrino oscillation experiments present anomalous results across a vast range of baselines and energies. Here we show that a 3+1 scenario in which sterile neutrinos feel a novel matter potential $V_s$ proportional to background density of ordinary or (asymmetric) dark matter is able to explain several anomalies. At low-energies ($E\\lesssim$ 1 TeV) the model behaves as an effective 3-flavor NSI-like scheme among active flavors and eliminates the tension between the two LBL experiments NOvA and T2K provided that the potential is negative and the two sterile mixing angles $\\theta_{14}$ and $\\the"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"A 3+1 scenario in which sterile neutrinos feel a novel matter potential Vs proportional to background density of ordinary or (asymmetric) dark matter is able to explain several anomalies.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The existence and specific negative value of the new sterile matter potential Vs (f ≈ -20) that is introduced by hand to fit the data rather than derived from a deeper theory.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A sterile neutrino with a novel density-dependent matter potential Vs resolves multiple oscillation anomalies when Vs is negative and mixing angles are small.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A new matter potential felt by sterile neutrinos reconciles multiple neutrino oscillation anomalies in a 3+1 model.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"5f4a95b8b2ae22c99fe196b42d13689ddf96b57f8b4a671a5689ffd24de5af78"},"source":{"id":"2605.15146","kind":"arxiv","version":1},"verdict":{"id":"c8e342db-8e7e-4226-a69b-63b485c6e126","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T03:04:32.183627Z","strongest_claim":"A 3+1 scenario in which sterile neutrinos feel a novel matter potential Vs proportional to background density of ordinary or (asymmetric) dark matter is able to explain several anomalies.","one_line_summary":"A sterile neutrino with a novel density-dependent matter potential Vs resolves multiple oscillation anomalies when Vs is negative and mixing angles are small.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The existence and specific negative value of the new sterile matter potential Vs (f ≈ -20) that is introduced by hand to fit the data rather than derived from a deeper theory.","pith_extraction_headline":"A new matter potential felt by sterile neutrinos reconciles multiple neutrino oscillation anomalies in a 3+1 model."},"references":{"count":149,"sample":[{"doi":"","year":2022,"title":"Aguilar et al., Evidence for neutrino oscillations from the observation of ¯νe appearance in a ¯νµ beam, Phys","work_id":"e9fa9447-3c55-40bb-b2a3-8fe3d52f1804","ref_index":1,"cited_arxiv_id":"hep-ex/0104049","is_internal_anchor":true},{"doi":"","year":2011,"title":"Mention et al., Phys","work_id":"64e2e56d-0dcb-424e-b6f7-417c712691f8","ref_index":2,"cited_arxiv_id":"1101.2755","is_internal_anchor":true},{"doi":"","year":2010,"title":"Reanalysis of the GALLEX solar neutrino flux and source experiments","work_id":"377e710a-6758-42c7-9f12-bfa30c841965","ref_index":3,"cited_arxiv_id":"1001.2731","is_internal_anchor":true},{"doi":"","year":1996,"title":"Measurement of the solar neutrino capture rate with gallium metal. III: Results for the 2002--2007 data-taking period","work_id":"70bcf701-0021-49c7-9b37-62a12f1f1daf","ref_index":4,"cited_arxiv_id":"0901.2200","is_internal_anchor":true},{"doi":"","year":2022,"title":"Barinov et al.,Results from the Baksan Experiment on Sterile Transitions (BEST),Phys","work_id":"b822c209-8a59-43ef-9f44-ef0da20e816d","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":149,"snapshot_sha256":"617e01cbe92e71b45ed2935dc17f5d55b17b0091ab2c06916c6d1ef1b3537b36","internal_anchors":73},"formal_canon":{"evidence_count":2,"snapshot_sha256":"dd0d1d555b97082cc894aabfee10ee80f7c9c965fa5d0bf8352182065ee4d5c4"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}