Golden channel tagging with scintillation information in DUNE Far Detector

The Deep Underground Neutrino Experiment (DUNE) has a broad physics scope including precision neutrino oscillation measurements, searches for Beyond Standard Model (BSM) signatures, and observation of low-energy astrophysical neutrinos. Neutrinos with an energy below 100 MeV are known as Low Energy (LE) Neutrinos.These can come from terrestrial sources (nuclear reactors, particle accelerators, radioactive materials, the atmosphere) but also from astrophysical sources (the Sun, supernovae). The solar and supernova neutrinos are of special interest due the information that they can provide, given the low rate of interactions after their production. Liquid Argon Time Projection Chambers (LArTPC) are a high precision detector technology that use the ionization and scintillation properties of liquid argon to measure the deposited energy of charged particles. The LArTPC charge read out system collects the electrons and then the reconstruction algorithms use to generate a 2D image of the particle tracks, while the Photo Detection System (PDS) detects the scintillation light that is used to determine the interaction time. The DUNE far detector LArTPCs will have the capability to measure neutrinos with energy > 5 MeV with high precision, allowing the measurement of a large range of solar neutrino spectrum. Given the magnitude of the far detector modules, and multiple background sources, the measurements of the LE neutrinos are challenging. In this talk we present the development of a technique that facilitates the tagging of charge current (CC) electron-neutrino interactions on LAr using only the argon scintillation light.