1999/06/22 by G. L. Fogli, E. Lisi, Fogli, G. L. +6
Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9906450
14 pages, 5 figures
arxiv created 1999/06/22 · openalex publication_date 1999/06/22 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The evidence for νμ disappearance in the Super-Kamiokande atmospheric neutrino experiment and the negative searches for νe disappearance in the CHOOZ reactor experiment can be easily reconciled by assuming oscillations with large amplitude in the νμ↔ντ channel and small (or null) amplitude in the νμ↔νe channel. It has been claimed, however, that some oscillation scenarios with large νμ↔νe mixing can also be constructed in agreement with the present data. We investigate quantitatively two such scenarios: (a) threefold maximal mixing; and (b) attempts to fit all sources of evidence for oscillations (solar, atmospheric, and accelerator) with three neutrinos. By using mainly Super-Kamiokande data, we show that the case (a) is disfavored, and that the case (b) is definitely ruled out.