1998/07/23 by Giuseppe Battistoni, Battistoni, Giuseppe, Paolo Lipari +2
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9807475
Latex, 31 pages, 7 eps-figures. To appear in the proceedings of the 1998 'Vulcano workshop on Frontier Objects in Astrophysics and Particle Physics'
arxiv created 1998/07/23 · openalex publication_date 1998/07/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Measurements of atmospheric neutrinos by Super-Kamiokande an other detectors have given evidence for the existence of neutrino oscillations with large mixing and Δm2 in the range 10-3-10-2 eV2. In this work we discuss critically some of the possible experimental strategies to confirm this result and determine more accurately the neutrino oscillation parameters. A possible method is the development of long-baseline accelerator neutrino beams. The accelerator beams can have higher intensity and higher average energy than the atmospheric flux, and if (νμ↔ ντ) oscillations are indeed the cause of the atmospheric neutrino anomaly, they can produce a measurable rate of τ leptons for most (but not all) of the values of the oscillation parameters that are a solution to the atmospheric data. On the other hand measurements of atmospheric neutrinos with large statistics and/or better experimental resolutions, can also provide convincing evidence for oscillations, thanks to unambiguous detectable effects on the energy, zenith angle and L/Eνdistributions of the events. The study of these effects can provide a precise determination of the oscillations parameters. The range of L/Eνavailable for atmospheric neutrinos is much larger than in long-baseline accelerator experiments, and the sensitivity extends to lower values of Δm2.