2005/04/16 by G. Giacomelli, Giacomelli, G., A. Margiotta +1
Computer Science · Physics and Astronomy · #Astrophysics (astro-ph) #Astrophysics and Cosmic Phenomena #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #astro-ph #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0504029
4 pages, 6 figures. Paper presented at the NOW 2004 Workshop, Conca Specchiulla, Otranto, Italy, September 2004
openalex publication_date 2005/04/16 · arxiv created 2005/04/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss the final results of the MACRO experiment on atmospheric neutrino oscillations. The data concern event topologies with average neutrino energies of ~3 and ~50 GeV. Multiple Coulomb Scattering of the high energy muons was used to estimate the neutrino energy event by event. The angular distributions, the L/Enu distribution, the particle ratios and the absolute fluxes all favor numu --> nutau oscillations with maximal mixing and Delta m2 ~0.0023 eV2. Emphasis is given to measured ratios which are not affected by Monte Carlo (MC) absolute normalization; a discussion is made on MC uncertainties. A preliminary search for possible Lorentz invariance violation contributions to atmospheric neutrino oscillations is presented and discussed.