Speaker
Description
Along with other experiments, the Daya Bay Reactor Neutrino Experiment has searched for light sterile neutrino mixing, using electron antineutrino disappearance. Through comparing a 1230-day sample to prediction, assuming a 3+1 neutrino model, Daya Bay set the most stringent limits to date on the mixing of sterile neutrinos for $2\times 10^{-4}\, < \Delta m^2_{41} < 0.3$ eV$^2$. A joint analysis with the Bugey-3 short-baseline reactor experiment and MINOS/MINOS+ accelerator experiments resulted in the world-leading limits on the $\theta_{\mu e}$ mixing angle for over five orders of magnitude in the sterile mass-squared difference $\Delta m^2_{41}$. These results exclude the LSND and MiniBooNE allowed regions at $90\%$ for $\Delta m^2_{41} < 5$ eV$^2$, weakening the sterile neutrino explanation of their observations. The Daya Bay results, as well as the combined results, will be presented in this poster.
| Collaboration / Activity | Daya Bay collaboration |
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