Extended Data Fig. 4: Data versus model in region of interest.
From: Direct observation of coherent elastic antineutrino–nucleus scattering
a, b, Off count rates normalized to 1 kg day in comparison to the corresponding background models are shown in the region of interest. The signal excess in the reactor on data is seen at low energies below 250 eVee. The vertical bars represent the statistical uncertainties of the data in each 10 eVee bin at a 68% CL (1σ). Statistical fluctuations are significantly higher in the off than in the on data due to the shorter period of data collection. Due to the slightly different detector thresholds only one detector (C3) contributes to the lowest bin, the second includes two detectors (C3 and C5) and bins above 180 eVee are based on the summed spectra of of all three detectors. The difference between the two reactor on curves is shown in Fig. 3.
