Performance of low-$\text{E}_{\text{T}}$ electrons and photons using 2018 ultraperipheral PbPb

This note presents the performance of low-$\text{E}_{\text{T}}$ electrons and photons, optimized for lead-lead (PbPb) ultraperipheral collisions recorded in 2018 by the CMS experiment. The energy scale and resolution of electromagnetic superclusters are shown, as well as the electron reconstruction+identification and Level-1 electromagnetic cluster efficiencies. All figures can be found at https://twiki.cern.ch/twiki/bin/view/CMSPublic/HINEGammaDPForQM22.