Studies of Neutrino Oscillations at Accelerators

Status and prospects of neutrino oscillations: terrestrial sources

“…In 1977, scientists at the Institut-Laue-Langevin (ILL) research reactor in France, placed at a distance of 8.7 m from the reactor core, a liquid scintillator positron detector surrounded by 3 He proportional counters to detect the neutrons. The measured neutrino spectrum matched the calculated spectrum, excluding the high mass region m 2 0.15 eV 2 for mixing angles sin 2 2θ > 0.25.…”

“…is the difference in the square of the masses in units of eV 2 , L is the path length travelled in metres and E is the neutrino energy in MeV. For mixing between three ν states, the 3 by 3 mixing matrix depends on mixing angles, θ 12 , θ 13 and θ 23 , and the oscillation probability has the same oscillatory dependence on the corresponding mass differences m 2 12 , m 2 13 and m 2 32 .…”

“…For an extensive review of reactor experiments, please refer to the article by Bemporad et al [1], and the chapter by F Boehm in an exhaustive set of articles on neutrino physics collected in one book [2]. In addition, the chapter by D O Caldwell provides a detailed review of accelerator-based neutrino physics [3].…”