Example invariant mass distributions in the $\eta$ peak region for EMCal (upper left) and PCM (upper right) using the MB trigger, and PCM-EMCal (lower left and lower right) using the EMC-L0 trigger as well as the EMC-L1 trigger.[png] [pdf] [eps][png] [pdf] [eps][png] [pdf] [eps][png] [pdf] [eps]