Speaker
Description
In February 2025, a prototype for the ePIC Electron Endcap Electromagnetic Calorimeter (EEEMCal) was tested at the DESY II Test Beam Facility in Hamburg, Germany. The prototype consisted of 25 lead-tungstate ($\hbox{PbWO}_4$) crystals with an SiPM readout. Each crystal was instrumented with 16 SiPMs, read out either individually, with four in parallel, or with all 16 in parallel by the H2GROC ASIC, which was developed for the CMS High Granularity Calorimeter upgrade and is being adapted into the CALOROC readout for the ePIC detector. The prototype was exposed to beams of electrons with an energy from $1$ to $6$ $\rm GeV$ to characterize primarily the energy resolution of the detector, as well as position scans which can be used to study the position resolution. This talk will summarize the test beam campaign up through the current state of the analysis.
