Sterile neutrino

Neutrino oscillation

Particle physics

Physics

Neutrino detector

Mixing (physics)

Measurements of neutrino speed

Nuclear physics

Neutrino

Muon

MINOS

Muon neutrino

Solar neutrino

Quantum mechanics

Physical Review Letters

A search for mixing between active neutrinos and light sterile neutrinos has been performed by looking for muon neutrino disappearance in two detectors at baselines of 1.04 and 735 km, using a combined MINOS and MINOS+ exposure of 16.36×10^{20} protons on target. A simultaneous fit to the charged-current muon neutrino and neutral-current neutrino energy spectra in the two detectors yields no evidence for sterile neutrino mixing using a 3+1 model. The most stringent limit to date is set on the mixing parameter sin^{2}θ_{24} for most values of the sterile neutrino mass splitting Δm_{41}^{2}>10^{-4} eV^{2}.

Search for Sterile Neutrinos in MINOS and MINOS+ Using a Two-Detector Fit