The PROSPECT Reactor Antineutrino Experiment

The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to make both a precise measurement of the antineutrino spectrum from a highly- enriched uraniumreactor and to probe eV-scale sterile neutrinosby searching for neutrino oscillationsover meter-long baselines. PROSPECTutilizes a segmented Li6-doped liquid scintillator detector for both efficient detection of reactor antineutrinos through the inverse beta decayreaction and excellent background discrimination. PROSPECTis a movable 4-ton antineutrino detector covering distances of 7m to 13m from the HFIR reactor core. It will probe the best-fit point of the antineutrino disappearance experiments at 4 sigma in 1 year and the favored regions of the sterile neutrinoparameter space at more than 3 sigma in 3 years. PROSPECTwill test the origin of spectral deviations observed in recent Theta13 experiments, search for sterile neutrinos, and address the hypothesis of sterile neutrinosas an explanation of the reactor anomaly.