Speaker
Description
The XLZD Collaboration is developing the next generation large low background xenon experiment with the aim to search for WIMP dark matter into the neutrino-fog. The proposed instrument also provides myriad scientific opportunities in neutrino physics; for instance the search for neutrinoless double beta decay and astrophysical neutrino phenomena. XLZD’s design is a $\ge 60$-tonne active xenon dual-phase time projection chamber, pulling from the heritage of XENONnT and LUX-ZEPLIN experiments currently operating ~$10$-tonne detectors using this technology, and the R&D performed by the DARWIN and nEXO collaborations. A 100-tonne detector with 1000 tonne-years exposure would be the definitive DM experiment, pushing the $3\sigma$ discovery potential down to $3\times 10^{-49}~\rm{cm}^2$ at $40~\rm{GeV/c}^2$, the systematic limit imposed by astrophysical neutrinos. Studies are presently ongoing to push XLZD’s neutrinoless double beta decay sensitivity using natural xenon, with $9\%$ $^{136}\rm{Xe}$, above $10^{28}$ year half-live. This talk will give an overview of XLZD, and cover its rich physics potential.
