Fig. 10: The signal efficiency as a function of O2 and the image of p-Ps \(\to2\gamma\) annihilation points. | Nature Communications

Fig. 10: The signal efficiency as a function of O2 and the image of p-Ps \(\to2\gamma\) annihilation points.

From: Discrete symmetries tested at 10−4 precision using linear polarization of photons from positronium annihilations

Fig. 10: The signal efficiency as a function of O2 and the image of p-Ps $$\to2\gamma$$ → 2 γ annihilation points.The alternative text for this image may have been generated using AI.

a Monte Carlo simulation derived distribution of efficiency including all selection criteria applied for the described analysis and geometrical acceptance of the detector for signal events. b Annihilation points in the XY plane reconstructed with 2γ events from 19 days of measurement. The visible rosette pattern is due to the geometrical acceptance of the detector (placement of scintillators strips presented at Fig. 1).

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