Speaker
Description
Beyond the primary objective of discovering dark matter, direct detection experiments are rapidly emerging as highly effective tools for the study of neutrinos, acting as competitive probes of low-energy interactions with both nuclei and electrons. The XENONnT and PandaX-4T collaborations have recently reported the first evidence of coherent elastic neutrino–nucleus scattering (CEνNS) from solar $^8B$ neutrinos. Together with the measurements of solar neutrino–electron scattering by the same detectors and the electron recoil results from LUX-ZEPLIN, these CEvNS data complement existing measurements using reactor and accelerator neutrinos. In this talk, I will highlight the potential of xenon-based dark matter detectors by presenting an analysis of their recent solar neutrino data. I will focus on the implications for both Standard Model and beyond-the-Standard-Model physics, with particular attention to flavor-dependent scenarios involving the tau flavor. This analysis yields new determinations of the weak mixing angle and improved limits on neutrino electromagnetic properties such as charge radius, electric millicharge and magnetic moment, as well as updated constraints on nonstandard neutrino interactions and the existence of a hypothetical $L_μ-L_τ$ light vector boson mediator. In the future, the improved precision expected from next-generation dark matter experiments will be crucial for refining these results and probing new physics with even greater sensitivity.
| Main Contribution topic | Theory / Phenomenology |
|---|---|
| Secondary contribution topic | Direct detection |