"Electron Lifetime at the DUNE ND

Neutrino oscillations are one of the main mysteries of physics today. The Deep Underground Neutrino Experiment (DUNE) is currently being built to make precise measurements of neutrino oscillation parameters, such as the neutrino mass ordering and the charge parity phase. DUNE will consist of a Near Detector (ND) at Fermilab and a Far Detector at Sanford Underground Research Facility. The ND will measure the neutrino rate before oscillation, serving as the experiment's control. The ND complex will consist of 35 liquid argon time projection chamber (LArTPCs) modules (ND-LAr) to observe neutrino interactions. The 2x2 demonstrator is a prototype of the DUNE ND-LAr detector that will be used to demonstrate the ability to accurately identify neutrino interactions using modular LArTPCs. Proper calibration of the 2x2 is needed to reconstruct the energy of the events and prepare for full scale ND-LAr detector. In this talk, the electron lifetime calibration using a muon selection for the 2x2 demonstrator will be discussed.