New MACRO results on atmospheric neutrino oscillations
نویسنده
چکیده
The final results of the MACRO experiment on atmospheric neutrino oscillations are presented and discussed. The data concern different event topologies with average neutrino energies of ∼ 3 and ∼ 50 GeV. Multiple Coulomb Scattering of the high energy muons in absorbers was used to estimate the neutrino energy of each event. The angular distributions, the L/Eν distribution, the particle ratios and the absolute fluxes all favour νμ → ντ oscillations with maximal mixing and ∆m = 0.0023 eV. A discussion is made on the Monte Carlos used for the atmospheric neutrino flux. Some results on neutrino astrophysics are also briefly discussed.
منابع مشابه
Atmospheric Neutrino Oscillations
The recent results from the Soudan 2, MACRO and SuperKamiokande experiments on atmospheric neutrino oscillations are summarized and discussed. Some features of possible future atmospheric neutrino experiments are presented.
متن کاملMACRO results on atmospheric neutrinos
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/Eν distribution, the particle ratios and the absolute fluxes all favor νμ → ν...
متن کاملAtmospheric neutrino oscillations with the MACRO detector
After a short overview of the MACRO detector, located at the Gran Sasso Laboratory, I shall present and discuss the results on atmospheric muon neutrino oscillations, concerning low (〈Eν〉 ∼ 4 GeV) and high (〈Eν〉 ∼ 50 GeV) energy data. Using the Multiple Coulomb Scattering of muons inside the lower part of the detector, estimates of the neutrino energy were made event by event for the high energ...
متن کاملMacro and the Atmospheric Neutrino Problem
After a brief presentation of the MACRO detector we discuss the updated data on atmospheric muon neutrinos, and the interpretation in terms of neutrino oscillations .
متن کاملNeutrino Oscillations at High Energy by MACRO
We present updated results of the measurement of upward-going muons produced by neutrino interactions in the rock below the MACRO detector. These data support MACRO’s previously published results. They favor a neutrino oscillation explanation of the atmospheric neutrino anomaly.
متن کامل