# DPF2015

4-8 August 2015
America/Detroit timezone

## A Cosmic Ray Veto Detector for the Mu2e Experiment at Fermilab

4 Aug 2015, 16:45
15m
Koessler (Michigan League)

Detectors

### Speaker

Prof. E. Craig Dukes (University of Virginia)

### Description

The Mu2e experiment is designed to search for the charged-lepton-flavor-violating process, $\mu^-$ to a $e^-$, with unprecedented sensitivity. The single 105-MeV electron that results from this process can be mimicked by electrons produced by cosmic-ray muons traversing the detector. An active veto detector surrounding the apparatus is used to detect incoming cosmic-ray muons. To reduce the backgrounds to the required level it must have an efficiency of about 99.99% as well as excellent hermeticity. The detector consists of four layers of scintillator counters, each with two embedded wavelength-shifting fibers, whose light is detected by silicon photomultipliers. The design and expected performance of the cosmic ray veto detector will be described.
Oral or Poster Presentation Oral

### Primary author

Prof. E. Craig Dukes (University of Virginia)