Towards a Precision CEvNS Measurement with a Tonne-Scale Liquid Argon Detector
ORAL
Abstract
Precision measurements of coherent elastic neutrino-nucleus scattering (CEvNS) will allow a broad collection of physics studies ranging from improving constraints on non-standard neutrino interactions to probing nuclear structure. A CEvNS detector near a spallation target also provides the opportunity to search for light accelerator-produced dark matter. Such studies require large-scale low-threshold detectors. To that end, the COHERENT collaboration has designed a 750~kg liquid argon (LAr) scintillation detector to deploy at the Spallation Neutron Source at Oak Ridge National Laboratory. The detector is designed to achieve the 20~keVnr threshold needed for efficient detection of nuclear recoils. In this talk I will present the experimental design and discuss the expected physics sensitivity of this detector, as well as outline the ongoing R\&D to further improve the light collection for future CEvNS studies with LAr.
*This work is supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics and the National Science Foundation Office of Nuclear Physics. This research also used resources at the Spallation Neutron Source, which is a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory.
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