Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2002-10-03
Braz.J.Phys. 33 (2003) 211-217
Physics
High Energy Physics
High Energy Physics - Experiment
12 pages, 10 PS and EPS figures. Invited paper at the 25^ Meeting of the Nuclear Division of the Brasilian Physical Society, S
Scientific paper
The results of the MACRO experiment on atmospheric neutrino oscillations are presented and discussed. The data concern different event topologies with average neutrino energies of ~ 4 and ~ 50 GeV. The Multiple Coulomb Scattering of muons in the MACRO absorbers was used to estimate the neutrino energy of each event of the higher energy sample. The angular distributions, the absolute fluxes and the L/E distribution favour nu_mu <--> nu_tau oscillations with maximal mixing and Delta m^2=0.0025 eV^2. Results are presented on the searches for astrophysical sources of high energy muon neutrinos, for bursts of electron antineutrinos from stellar gravitational collapses and on indirect searches for WIMPs from the Earth and from the Sun.
for the MACRO Collaboration
Giacomelli Giorgio
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