Short-baseline Reactor Neutrino Oscillation

Understand

The successful measurements of the smallest neutrino mixing angle, $\theta_{13}$, in 2012 by the short (1$\sim$2 km) baseline reactor neutrinos experiments, Daya Bay, RENO, and Double Chooz, have triggered a golden age of neutrino physics.

• The three experiments have been improving the $\theta_{13}$ measurements by accumulating event statistics and reducing systematic uncertainties.
• Now the $\theta_{13}$ measurement is the most precise one among the mixing angles in the Pontecorvo-Maki-Nakagawa-Sakata matrix.
• The most updated $\theta_{13}$ and $\Delta m^{2}_{ee}$ measurements from these experiments are reported here as well as the 5 MeV excess, absolute reactor neutrino flux and sterile neutrino search.