Tests of the Effective Weak Interaction with the World’s Smallest Neutrino Detector

This book describes the most precise measurement of coherent elastic neutrino-nucleus scattering, using a suite of detectors, each of which qualifies as the world’s smallest neutrino detector. Searches for physics beyond the Standard Model require precise predictions and precise experiments to look for subtle and unexpected deviations, and this thesis makes a compelling case for the importance of these low-energy, precision tests of the effective weak current for extensions to our current understanding of the Universe. The result presented here marks a transition in these paradigm-shifting experiments, laying the groundwork for the next generation of world-leading detectors and experiments in the field. In addition to the scientific value of the presented results, the thesis also serves as a pedagogical introduction for any researcher new to the field.