Fig. 4: Simulated contours of S1 and S2 for various event types.
From: HydroX, a light dark matter search with hydrogen-doped liquid xenon time projection chambers
The red contours show 1 GeV WIMP-hydrogen scattering, and the blue contours show 8B neutrino–xenon scattering. The gray contours show 214Pb beta decay events. The dark (light) region represent the 1σ (2σ) region.
