Measuring Charged Current Electron Neutrino - Argon scattering cross section with the CCM detector

The next generation of large-scale detectors employing liquid argon (LAr) demands a detailed understanding of the neutrino interaction cross-sections with this element. In particular, the first measurement of the charged current scattering of electron neutrinos with argon at low energies has not yet been made. This absence of data represents a challenge for future experiments, such as those that aim to detect supernovae neutrinos via this interaction, like DUNE. To carry out this crucial measurement, a facility that generates a substantial flux of neutrinos of an energy of tens of MeV is required, such as LANSCE-Lujan at Los Alamos National Laboratory. It consists of an 800 MeV, short-pulsed 20 Hz proton beam on a tungsten target neutron source, which is a prolific source of neutrinos from stopped pions and muon decay. Located 23 m from the target, the Coherent Captain Mills (CCM) detector is a 10 ton cryostat filled with Liquid LAr instrumented with 200 photomultiplier tubes that capture scintillation light, and has the necessary conditions to perform this measurement. In this talk, the progress and status of the ongoing data analysis will be presented.