Speaker
Description
XLZD is a next-generation liquid xenon observatory for dark matter and neutrinos. Building upon the expertise of the XENON, LZ, and DARWIN collaborations, the experiment will probe WIMP dark matter interactions down to the neutrino fog with an active target between 60 and 80 t.
In parallel, XLZD will pursue a broad neutrino physics programme, spanning neutrinoless double beta decay and astrophysical neutrino measurements. The detector is projected to reach a 3σ sensitivity to neutrinoless double beta decay of $^{136}\mathrm{Xe}$ for half-lives up to $5.7\times10^{27}$ years. It will also enable high-statistics measurements of solar $^{8}\mathrm{B}$ and pp neutrino fluxes, providing a direct probe of the electron-neutrino survival probability and an independent measurement of the weak mixing angle. Furthermore, XLZD will be sensitive to neutrinos from galactic supernovae through coherent elastic neutrino–nucleus scattering — a flavour-independent channel that allows reconstruction of the total neutrino flux.
This talk will present the baseline detector scenarios and highlight the rich neutrino physics potential of XLZD.