Signal efficiency as a function of dark photon mass for different ECAL configurations. (IMAGE)
Caption
Signal efficiency is defined as the ratio of events entering the signal region to the total number of simulated events. The notations "x×y×z" in the legends represents the number of crystals in the ECAL along the transverse-x, transverse-y, and longitudinal-z dimensions. Signal efficiency optimization based on transverse (Left) and longitudinal (Right) size variations determines the overall dimensions of the detector.
Credit
Li Shu
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License
CC BY-NC