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Figure 1

Determination of trigger rejection factors for the used PHOS-L0 and EMC-L0/L1 triggers. The raw spectra of photon candidates for each trigger combination given in the legend are used to obtain the respective ratio of yields. The obtained distributions are then fitted with a constant in the illustrated energy ranges, yielding the quoted $RF$s. The uncertainties of $RF$ determination are indicated in light colored uncertainty bands.
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