Speaker
Description
The Daya Bay experiment has studied antineutrino emission at low-enriched uranium reactors, with detectors spanning a large baseline from the reactor cores ($\sim$2km). This poster presents results of a search for the mixing of a sub-eV sterile neutrino based on Daya Bay's full data sample. The result is obtained in the minimally extended 3+1 neutrino mixing model. The analysis benefits from a doubling of the statistics ($5.55\times10^{6}$ candidates) of our previous result and from improvements of several important systematic uncertainties. With these updates, the sensitivity to $\sin^22\theta_{14}$ achieves $5\times10^{-3}$ with $95\%$ confidence level, which represents the world leading constraints in the region of $2\times10^{-4}$ eV$^2$ $\lesssim\Delta m^{2}_{41}\lesssim2\times10^{-1}$ eV$^2$.
| Alternate track | 03. Beyond the Standard Model |
|---|---|
| I read the instructions above | Yes |
