Speaker
Description
There are no measurements of electron neutrino charged-current interactions on argon from 10-50 MeV but they are important for future experiments and theoretical modeling of nuclei. Knowledge of the cross section at these energies will be critical in the event that the upcoming Deep Underground Neutrino Experiment (DUNE) observes neutrinos from a galactic supernova. Uncertainties on the cross sections will impact what can be concluded about both the dynamics of supernovae and the properties of neutrinos. Differential cross sections will also provide relevant data for on-going theoretical work on modeling the transitions between nuclear states. The COHERENT collaboration is currently constructing a 750 kg single-phase liquid argon scintillator to study neutrinos coming from the Spallation Neutron Source (SNS) located at Oak Ridge National Laboratory (ORNL). In addition to producing a high-intensity flux of neutrons, the SNS also is an intense source of neutrinos coming primarily from pion decay-at-rest.These neutrinos are emitted at an energy well matched to the regime of interest (10-50 MeV). One of the main impediments to doing this measurement are cosmic ray background events which mirror neutrino signatures in the detector. This poster will discuss the experimental timeline, the expected signal and cosmic background rate, and an ML-based method for vetoing cosmic background events.