COH-Ar-750 Development and Status on behalf of COHERENT

COH-Ar-750, COHERENT's tonne-scale liquid argon detector, will have an event rate an order of magnitude higher than its predecessor CENNS-10, allowing for a precision (percent-level) measurement of the coherent elastic neutrino-nucleus scattering (CEvNS) cross section. Results from CENNS-10 with the full dataset will be presented. COH-Ar-750 hardware and status will then follow. The results of PMT characterization work and TPB coating will be presented. The cryostat and vacuum chamber have underdone extensive testing together with the accompanying liquefying system and these tests and results will also be discussed. The current status of COH-Ar-750 will lead into the discussion of its physics goals including measurement of the CEvNS cross section, charged-current cross section measurements, sensitivity to nuclear form factors, accelerator-produced dark matter, neutrino magnetic moment and other beyond standard model physics scenarios. A timeline of COH-Ar-750's deployment to the Spallation Neutron Source (SNS) at Oak Ridge National Lab will be presented as it will take advantage of the recent SNS proton beam upgrades. Lastly, potential upgrades to the detector, such as the use of silicon photomultipliers, will also be presented.