We present a novel two‐stage particle‐identification (PID) workflow for the ePIC Barrel Imaging Calorimeter (BIC) at the future Electron–Ion Collider. In the first stage, we exploit the classical calorimeter‐to‐track energy ratio E/p (optimally summing energy across the first eight SciFi layers) to achieve a 97 % electron efficiency and a pion rejection factor R_π≈23.5. In the second stage, we...
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...
The Electron-Ion Collider is an in-development facility that will enable further experimental study of the properties and behavior of fundamental and hadron-scale particles. In order for this project to proceed optimally, considerable efforts are required to design detectors and other equipment suitable to the physics specifications set for the Electron-Ion Collider. One of many planned...
