Latest results from coherent elastic neutrino-nucleus scattering

Coherent elastic neutrino-nucleus scattering (CEvNS) is a process in which a neutrino scatters off an entire nucleus instead of interacting with individual nucleons. Since the neutrino interacts with the entire nucleus in low momentum transfer, the scattering cross-section of CEvNS is higher than individual nucleon interaction, making it the most common type of neutrino interaction at low energy. However, the tiny recoil energy of the nucleus makes it extremely difficult to detect. The COHERENT collaboration observed it for the first time in 2017 with a CsI[Na] scintillator detector using a pion-decay-at-rest neutrino source at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory. In addition, COHERENT later measured the CEvNS signal in Ar and Ge nuclei. Many experiments are currently under development to observe the CEvNS signal from beam, reactor, and solar neutrinos, and some have already detected it. This talk will cover the CEvNS process and present the latest results from COHERENT and other experiments.