Abstract:
Coherent elastic neutrino-nucleus scattering (CEvNS) is a process in which a neutrino scatters off an entire nucleus at low momentum transfer, and for which the observable signature is a low-energy nuclear recoil. It represents a background for direct dark-matter detection experiments, as well as a possible signal for astrophysical neutrinos. Furthermore, because the process is cleanly predicted in the Standard Model, a measurement is sensitive to beyond-the-Standard-Model physics, such as non-standard interactions of neutrinos. The process was first predicted in 1973. It was measured for the first time with a CsI[Na] scintillator detector by the COHERENT collaboration in 2017 using the high-quality source of pion-decay-at-rest neutrinos from the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory. Since then, COHERENT has measured CEvNS in two more nuclear targets, Ar and Ge. In addition, COHERENT has new results on inelastic neutrino-nucleus interactions. This talk will cover COHERENT's recent measurements and future plans.