Low Background kTon-Scale Liquid Argon Time Projection Chambers
A. Avasthi, T. Bezerra, A. Borkum, E. Church, J. Genovesi, J. Haiston, C. M. Jackson, I. Lazanu, B. Monreal, S. Munson, C. Ortiz, M. Parvu, S. J. M. Peeters, D. Pershey, S. S. Poudel, J. Reichenbacher, R. Saldanha, K. Scholberg, G. Sinev, J. Zennamo, H. O. Back, J. F. Beacom, F. Capozzi, C. Cuesta, Z. Djurcic, A. C. Ezeribe, I. Gil-Botella, S. W. Li, M. Mooney, M. Sore, S. Westerdale
We find that it is possible to increase sensitivity to low energy physics in a third or fourth DUNE-like module with careful controls over radiopurity and some modifications to a detector similar to the DUNE Far Detector design. In particular, sensitivity to supernova and solar neutrinos can be enhanced with improved MeV-scale reach. A neutrinoless double beta decay search with Xe loading appears feasible. Furthermore, sensitivity to Weakly-Interacting Massive Particle (WIMP) Dark Matter (DM) becomes competitive with the planned world program in such a detector, offering a unique seasonal variation detection that is characteristic for the nature of WIMPs.