Figure Information Scope: PWG PWG-EM (Electromagnetic probes) Energy 5.02 TeV System Pb-Pb Figure Group [QM2022] - Direct photon HBT correlations in pp and PbPb collisions at 5 TeV Figure Image Figure image (.eps) HBT_PbPb_0-10_35_to_50_MeV_DataFit_C_0.eps Figure image (.pdf) HBT_PbPb_0-10_35_to_50_MeV_DataFit_C_0.pdf Figure Caption Gamma-Gamma correlations in 0-10% PbPb collisions at 5 TeV for the pair momentum of 0.35<kT<0.5 GeV/c.