Speaker
Description
Coherent elastic neutrino–nucleus scattering (CEvNS) of solar neutrinos is a fundamental Standard Model process and an irreducible background for next-generation dark matter searches, often referred to as the “neutrino fog.” With its large exposure and ultra-low background, XENONnT has reached the sensitivity required to observe this interaction. Using data from the first and second science runs, we have searched for B-8 solar neutrino CEvNS and rejected the background-only hypothesis at 2.73 sigma, achieving the first direct detection of nuclear recoils from solar neutrinos in a dark matter detector. In this poster, I will present a detailed view of the search for solar B-8 CEvNS using the full analyzed dataset and discuss its implications for beyond-Standard-Model neutrino physics and light dark matter in neutrino fog.