We present the latest results on the study of atmospheric neutrino oscillations 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 〈Eν〉 ≃ 50 GeV) and low energy events (with 〈Eν〉 ≃ 4 GeV). The high energy sample has been used also to check the νμ ↔ νsterile oscillation hypothesis and to estimate neutrino energies using Multiple Coulomb Scattering (MCS) informations. All these analyses are mutually consistent and strongly favour the νμ ↔ ντ oscillation hypothesis with maximal mixing and Δm^2 = 2.5 · 10^-3 eV^2.

Ambrosio, M., Antolini, R., Assiro, R., Auriemma, G., Bakari, D., Baldini, A., et al. (2003). Atmospheric neutrino oscillations with MACRO. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 122, 301-304 [10.1016/S0920-5632(03)80404-8].

Atmospheric neutrino oscillations with MACRO

BUSSINO, Severino Angelo Maria;
2003-01-01

Abstract

We present the latest results on the study of atmospheric neutrino oscillations 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 〈Eν〉 ≃ 50 GeV) and low energy events (with 〈Eν〉 ≃ 4 GeV). The high energy sample has been used also to check the νμ ↔ νsterile oscillation hypothesis and to estimate neutrino energies using Multiple Coulomb Scattering (MCS) informations. All these analyses are mutually consistent and strongly favour the νμ ↔ ντ oscillation hypothesis with maximal mixing and Δm^2 = 2.5 · 10^-3 eV^2.
2003
Ambrosio, M., Antolini, R., Assiro, R., Auriemma, G., Bakari, D., Baldini, A., et al. (2003). Atmospheric neutrino oscillations with MACRO. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 122, 301-304 [10.1016/S0920-5632(03)80404-8].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/120517
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