Development of Future Electromagnetic Calorimeter Technologies and Applications for the Electron-Ion Collider with GEANT4 Simulations

¹ Los Alamos National Laboratory, P.O. Box 1663, Bikini Atoll Road, SM-30, Los Alamos, New Mexico, USA 87545
² Brookhaven National Laboratory, PO Box 5000, Upton, NY, USA 11973
³ Iowa State University, 701 Morrill Road, Ames, IA, USA 50011

^* e-mail: zhaozhongshi@lanl.gov

Published online: 1 March 2023

Abstract

The Electron-Ion Collider (EIC) is a future collider planned to be built at BNL in about a decade. It will provide physicists with high luminosity and highly polarized beams with a wide range of nuclei species at different energies, covering an extensive kinematic range. The EIC physics goals include measuring the Generalized Parton Distribution (GPD) from Deeply Virtual Compton Scattering (DVCS) and Deeply Virtual Meson Production (DVMP) experiments, performing precision 3D imaging of the nuclei structure, studying color confinement and hadronization mechanisms, and understanding the spin structure of the proton. In order to meet the physics goals of EIC, a highresolution electromagnetic calorimeter (EMCAL) is required to measure electrons and photons and to achieve good particle identification. We propose to develop a tungsten/shashlik (W/shashlik) EMCAL with better readout configuration to achieve better energy and position resolution. In this work, we will present the GEANT4 detector simulation results ofWand Pb shashlik EMCAL to study π⁰ merging probability as a function of π⁰ energy and the performance of position and energy resolutions of the EMCAL for ECCE design.