Constraining Neutrino Non-Standard Interactions at Dark Matter Direct Detection Experiments

New neutrino physics is unequivocally among us. Neutrinos are massive---a fact that we cannot explain within the bounds of the Standard Model (SM). This beckons us to study whether neutrinos could exhibit any additional non-standard behaviour, such as through non-standard interactions (NSIs) with other SM particles. Both oscillation experiments and experiments probing coherent elastic neutrino-nucleus scattering are excellent means with which to constrain potential neutrino NSIs, and future dark matter direct detection (DD) experiments have also been shown to be promising in this endeavour. However, the constraining power of DD experiments compared to those of dedicated neutrino experiments is yet to be evinced. In this talk, I will explore the bounds that DD experiments can place on NSIs using both nuclear and electron recoils, requiring us to introduce a new NSI parametrisation that simultaneously allows for new interactions with both the proton and the electron. By placing their results in the context of global NSI studies with neutrinos, I will demonstrate that both next-generation and far-future DD experiments are on course to provide us with crucial, novel information in this parameter space. Our results reinforce the importance of future DD experiments in constraining potential new physics in the neutrino sector, adding to an important research mission beyond their search for dark matter.