Atmospheric neutrino oscillations with MACRO

Details Atmospheric neutrino oscillations with MACRO Atmospheric neutrino oscillations with MACRO

2002-11-11

arxiv.org/abs/hep-ex/0211030v1

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 6 figures, talk given at the XII ISVHECRI, CERN, 15-20 July 2002

Scientific paper

We present the latest results on the study of atmospheric neutrino oscillations with the MACRO detector at Gran Sasso. Two sub-samples of events have been analysed, both in terms of absolute flux and zenith angle distribution: high energy events (with ~50 GeV) and low energy events (with ~4 GeV). The high energy sample has been used also to check the nu_mu <-> nu_sterile oscillation hypothesis and to estimate neutrino energies using Multiple Coulomb Scattering informations. All these analyses are mutually consistent and strongly favour the nu_mu <-> nu_tau oscillation hypothesis with maximal mixing and Delta_m^2 = 2.5 10^-3 eV^2.

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