Speaker
Description
The PROSPECT, STEREO, and Daya Bay experiments have each delivered important
contributions to reactor antineutrino research. PROSPECT and STEREO focus on
short-baseline (~10 m) measurements using highly enriched uranium (HEU) research reactors,
where nearly all antineutrinos originate from U-235 fissions. Meanwhile, Daya Bay investigates
antineutrino emissions from low-enriched uranium (LEU) commercial reactors, with detectors at
longer baselines (~2 km) and contributions from multiple isotopes. Individually, these
experiments have set stringent constraints on sterile neutrino oscillation parameters, each
probing different regions of parameter space. A new collaborative effort now combines the
complete datasets from all three experiments to enable a more comprehensive and precise
investigation of light sterile neutrinos. By uniting HEU and LEU data, this joint analysis expands
sensitivity to oscillation signatures beyond the reach of any single experiment and offers tighter
constraints on anomalies observed in short-baseline studies, such as the gallium anomaly. This
talk will present the results from this combined sterile neutrino oscillation search.