{"paper":{"title":"Limits on Neutrino Oscillations from the CHOOZ Experiment","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Baldini, A. Etenko, A. Martemyanov, A. Sabelnikov, B. Dieterle, B. Lefievre, C. Bemporad, C.E. Lane, D.Kryn, D. Nicolo, D. Veron, E. Caffau, F. Cei, G. Giannini, G. Pieri, G. Santin, H. de Kerret, H. Sobel, I. Machulin, J. George, J. Steele, L. Foresti, L. Mikaelyan, L. Price, M. Apollonio, M. Grassi, M. Laiman, M. Obolensky, M. Skorokhvatov, R. Pazzi, R. Reeder, R. Steinberg, S. Riley, S. Sukhotin, S. Tomshaw, V. Martemyanov, V. Vyrodov, W. Kropp, Y. Declais, Y. Kozlov","submitted_at":"1999-07-19T12:15:42Z","abstract_excerpt":"We present new results based on the entire CHOOZ data sample. We find (at 90% confidence level) no evidence for neutrino oscillations in the anti_nue disappearance mode, for the parameter region given by approximately Delta m**2 > 7 x 10**-4 eV^2 for maximum mixing, and sin**2(2 theta) = 0.10 for large Delta m**2. Lower sensitivity results, based only on the comparison of the positron spectra from the two different-distance nuclear reactors, are also presented; these are independent of the absolute normalization of the anti_nue flux, the cross section, the number of target protons and the dete"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9907037","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/hep-ex/9907037/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"}