Accessing new physics with an undoped, cryogenic CsI CEvNS detector for COHERENT at the SNS
P. S. Barbeau, V. Belov, I. Bernardi, C. Bock, A. Bolozdynya, R. Bouabid, J. Browning, B. Cabrera-Palmer, E. Conley, V. da Silva, J. Daughhetee, J. A. Detwiler, K. Ding, M. R. Durand, Y. Efremenko, S. R. Elliott, A. Erlandson, L. Fabris, M. Febbraro, A. Galindo-Uribarri, M. P. Green, J. Hakenmüller, M. R. Heath, S. Hedges, B. A. Johnson, T. Johnson, A. Khromov, A. M. Konovalov, E. Kozlova, A. Kumpan, O. Kyzylova, J. M. Link, J. Liu, Arkady Major, Kulwinder Singh Mann, D. M. Markoff, Carolyn Mattingly, P. E. Mueller, J. Newby, N. Ogoi, J. O’Reilly, D. S. Parno, D. Pérez–Loureiro, S. I. Penttila, D. Pershey, C. G. Prior, J. Queen, R. Rapp, H. Ray, O. Razuvaeva, D. Reyna, G. C. Rich, D. Rudik, J. Runge, D. J. Salvat, J. Sander, K. Scholberg, A. Shakirov, G. Simakov, W. M. Snow, V. Sosnovtsev, M. Stringer, T. Subedi, B. Suh, B. Sur, R. Tayloe, K. Tellez-Giron-Flores, Y.-T. Tsai, J. Vanderwerp, E. E. van Nieuwenhuizen, R. L. Varner, C. J. Virtue, G. Visser, K. Walkup, E. M. Ward, T. Wongjirad, Y. Yang, J. Yoo, C.-H. Yu, A. Zaalishvili
Abstract
We consider the potential for a 10 kg undoped cryogenic CsI detector operating at the Spallation Neutron Source to measure coherent elastic neutrino-nucleus scattering and its sensitivity to discover new physics beyond the standard model (BSM). Through a combination of increased event rate, lower threshold, and good timing resolution, such a detector would significantly improve on past measurements. We considered tests of several BSM scenarios such as neutrino nonstandard interactions and accelerator-produced dark matter. This detector’s performance was also studied for relevant questions in nuclear physics and neutrino astronomy, namely the weak charge distribution of Cs and I nuclei and detection of neutrinos from a core-collapse supernova. Published by the American Physical Society 2024