Michel Electron Reconstruction Using Cosmic-Ray Data from the MicroBooNE LArTPC

Understand

The MicroBooNE liquid argon time projection chamber (LArTPC) has been taking data at Fermilab since 2015 collecting, in addition to neutrino beam, cosmic-ray muons.

• Results are presented on the reconstruction of Michel electrons produced by the decay at rest of cosmic-ray muons.
• Michel electrons are abundantly produced in the TPC, and given their well known energy spectrum can be used to study MicroBooNE's detector response to low-energy electrons (electrons with energies up to ~50 MeV).
• We describe the fully-automated algorithm developed to reconstruct Michel electrons, with which a sample of ~14,000 Michel electron candidates is obtained.