Results of the LZ Dark Matter Experiment and Future Plans with XLZD
Prof. Dr. Henrique Araujo (Imperial College London, UK)

Nature continues to torment us with several well-posed and important questions which we have collectively failed to answer over several decades. What is the composition of the elusive “dark matter” that accounts for most of the mass of the cosmos? And why is the sub-dominant fraction of ordinary matter itself composed of particles rather than antiparticles? These fundamental questions may be answered by “listening in” to a large collection of very quiet atoms at the core of extremely sensitive radiation detectors installed deep underground. The XLZD Rare Event Observatory will address these important topics by searching for the scattering of dark matter particles in a large liquid xenon detector, and by searching for the neutrinoless double-beta decay of Xe-136 nuclei – another process with profound implications for fundamental physics. I will present some of the latest results from the ongoing LZ experiment taking data at the Sanford Lab, and then review the scientific motivation for, and potential reach of, the next-generation effort – XLZD. Finally, I will set out our vision to host the experiment in a newly developed Boulby Underground Laboratory in the UK.