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The Super-Kamiokande experiment provided a very precise measurement of neutrino oscillation in an energy range of hundreds of MeV to a few TeV, and with a baseline of the diameter of the Earth; the first experimental evidence for atmospheric neutrino oscillations was announced in 1998. [10]
Neutrino experiments are scientific studies investigating the properties of neutrinos, which are subatomic particles that are very difficult to detect due to their weak interactions with matter. Neutrino experiments are essential for understanding the fundamental properties of matter and the universe's behaviour at the subatomic level.
The global minimum, with a χ 2 probability of 96%, corresponds to sin 2 (2θ) = 0.23, δm 2 = 8.1 × 10 −4 eV 2, overall neutrino normalization = 1.012, and energy scale = 1.006. The no-oscillation hypothesis is also has a high χ 2 probability of 93%, corresponding to an overall neutrino normalization = 1.008 and energy scale = 1.011.
Neutrino oscillations are a quantum mechanical phenomenon in which neutrinos change their flavour (neutrino flavours states: ν e, ν μ, ν τ) while moving, caused by the fact that the neutrino flavour states are a mixture of the neutrino mass states (ν 1, ν 2, ν 3 mass states with masses m 1, m 2, m 3, respectively).
T2K ("Tokai to Kamioka") is a particle physics experiment studying the oscillations of the accelerator neutrinos.The experiment is conducted in Japan by the international cooperation of about 500 physicists and engineers with over 60 research institutions from several countries from Europe, Asia and North America [1] and it is a recognized CERN experiment (RE13).
Since neutrino oscillations depend upon the squared mass difference of the neutrinos, neutrino oscillations experience different dynamics than they did in vacuum. Similar to the vacuum case, the mixing angle θ m {\displaystyle \theta _{m}} describes the change of flavors of the eigenstates.
The Homestake experiment was followed by other experiments with the same purpose, such as Kamiokande in Japan, SAGE in the former Soviet Union, GALLEX in Italy, Super Kamiokande, also in Japan, and SNO (Sudbury Neutrino Observatory) in Ontario, Canada. SNO was the first detector able to detect neutrino oscillation, solving the solar neutrino ...
MiniBooNE is a Cherenkov detector experiment at Fermilab designed to observe neutrino oscillations (BooNE is an acronym for the Booster Neutrino Experiment). A neutrino beam consisting primarily of muon neutrinos is directed at a detector filled with 800 tons of mineral oil (ultrarefined methylene compounds) and lined with 1,280 photomultiplier ...