The cosmic ray veto (CRV) detector of the Mu2e experiment consists of four layers of plastic scintillation counters that surround the detector solenoid. These counters are embedded with wavelength-shifting fibers and are read out by silicon photomultipliers (SiPMs). The performance of a subset of the CRV counters was studied in a cosmic-ray test stand. Using data taken over a two-year period, we report the single-layer muon detection efficiency and the rate at which the light yield degrades due to the aging of the plastic scintillation counters.
@article{arxiv.2510.13798,
title = {Performance Studies of the Mu2e Cosmic Ray Veto Detector},
author = {Simon Corrodi and Mackenzie Devilbiss and E. Craig Dukes and Ralf Ehrlich and R. Craig Group and Tyler Horoho and Yuri Oksuzian and Paul Rubinov and Matthew Solt and Yongyi Wu},
journal= {arXiv preprint arXiv:2510.13798},
year = {2025}
}
Comments
21 pages (excluding title page), 12 figures. To be published in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment