Performance studies of the Mu2e cosmic ray veto detector

Corrodi, Simon; Devilbiss, Mackenzie; Dukes, E. Craig; Ehrlich, Ralf; Group, R. Craig; Horoho, Tyler; Oksuzian, Yuri; Rubinov, Paul; Solt, Matthew; Wu, Yongyi

doi:10.1016/j.nima.2025.171083

Performance studies of the Mu2e cosmic ray veto detector

Journal Article · Mon Oct 13 20:00:00 EDT 2025 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2025.171083· OSTI ID:3001703

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Argonne National Laboratory (ANL), Argonne, IL (United States)
Univ. of Michigan, Ann Arbor, MI (United States)
Univ. of Virginia, Charlottesville, VA (United States)
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Argonne National Laboratory (ANL), Argonne, IL (United States); Boston Univ., MA (United States)

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. Here, 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.

Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Office of Workforce Development for Teachers & Scientists (WDTS)

Grant/Contract Number:: SC0014664; 89243024CSC000002

OSTI ID:: 3001703

Alternate ID(s):: OSTI ID: 3011178

Report Number(s):: FERMILAB-PUB--25-0484-PPD; oai:inspirehep.net:3069984; arXiv:2510.13798

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 1083; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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