Figure 8
From: An induced annual modulation signature in COSINE-100 data by DAMA/LIBRA’s analysis method

Results of 1000 simulated experiments for the DAMA/LIBRA experiment. We generate 1000 simulated experiments with a background derived from COSINE-100 with an exposure and analysis method derived from the DAMA/LIBRA experiment without the dark matter signals. (a) Results of the modulation amplitudes (\(S_m\)) using the phase-fixed fit are presented with DAMA/LIBRA’s modulation amplitude. Although negative signs (opposite phase) are required, the simulated experiments obtain a modulation amplitude consistent with DAMA/LIBRA. Results for the phase-floated fits are shown for the modulation amplitude (b) and the modulation phase (c). Here we also observe consistent modulation amplitude but opposite phase by shifting the phase by \(\pi \) between the simulated experiments and DAMA/LIBRA.