Low Background kTon-Scale Liquid Argon Time Projection Chambers

Authors :: Avasthi, A.
Bezerra, T.
Borkum, A.
Church, E.
Genovesi, J.
Haiston, J.
Jackson, C. M.
Lazanu, I.
Monreal, B.
Munson, S.
Ortiz, C.
Parvu, M.
Peeters, S. J. M.
Pershey, D.
Poudel, S. S.
Reichenbacher, J.
Saldanha, R.
Scholberg, K.
Sinev, G.
Zennamo, J.
Back, H. O.
Beacom, J. F.
Capozzi, F.
Cuesta, C.
Djurcic, Z.
Ezeribe, A. C.
Gil-Botella, I.
Li, S. W.
Mooney, M.
Sore, M.
Westerdale, S.
Publication Year :: 2022
Abstract: 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 $^{136}$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.<br />Comment: contribution to Snowmass 2021