This paper presents performance measurements of a new readout electronics system based on silicon photomultipliers for the PHENIX electromagnetic calorimeter. Installation of the lead-scintillator Shashlik style calorimeter into the SeaQuest/SpinQuest spectrometer has been proposed to broaden the experiment's dark sector search program, an upgrade known as DarkQuest. The calorimeter and electronics system were subjected to testing and calibration at the Fermilab Test Beam Facility. Detailed studies of the energy response and resolution, as well as particle identification capabilities, were performed. The background rate in the actual experimental environment was also examined. The system is found to be well-suited for a dark sector search program on the Fermilab 120 GeV proton beamline.
@article{arxiv.2502.20590,
title = {Performance measurements of the electromagnetic calorimeter and readout electronics system for the DarkQuest experiment},
author = {Aram Apyan and Christopher Cosby and Yongbin Feng and Alp Gelgen and Stefania Gori and Philip Harris and Xinlong Liu and Mia Liu and Petar Maksimovic and Cristina Mantilla-Suarez and Ryan McLaughlin and Catherine Miller and Amitav Mitra and Noah Paladino and Arghya Ranjan Das and Valdis Slokenbergs and David Sperka and Nhan Tran and Zijie Wan},
journal= {arXiv preprint arXiv:2502.20590},
year = {2025}
}
Comments
Published in Nuclear Instrumentation and Methods A