{"paper":{"title":"Search for heavy neutrinos mixing with tau neutrinos","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"et al, NOMAD Collaboration, P. Astier","submitted_at":"2001-01-24T17:26:58Z","abstract_excerpt":"We report on a search for heavy neutrinos ($\\nus$) produced in the decay $D_s\\to \\tau \\nus$ at the SPS proton target followed by the decay $\\nudecay$ in the NOMAD detector. Both decays are expected to occur if $\\nus$ is a component of $\\nu_{\\tau}$.\\\n  From the analysis of the data collected during the 1996-1998 runs with $4.1\\times10^{19}$ protons on target, a single candidate event consistent with background expectations was found. This allows to derive an upper limit on the mixing strength between the heavy neutrino and the tau neutrino in the $\\nus$ mass range from 10 to 190 $\\rm MeV$. Wind"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/0101041","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/0101041/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}