The LUX-ZEPLIN (LZ) experiment is primarily designed to detect interactions of dark matter in the form of weakly-interacting massive particles (WIMPs) using a 7 tonne dual-phase xenon time projection chamber (TPC). LZ has been acquiring science data since 2021 under stable operating conditions. Now, with a combined exposure of 4.2 tonne-years from all science campaigns, LZ has placed the most stringent limits on spin-independent WIMP-nucleon cross section down to 2.2×10-48 cm2 for a 43 GeV/c2 WIMP mass [1]. In this talk I'll present the current status of the LZ experiment and its latest dark matter search results.
[1] J. Aalbers et al. (LZ Collaboration), "Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment", pre-print arXiv:2410.17036 [hep-ex], DOI:10.48550/arXiv.2410.17036 (submitted to PRL)
Paulo Brás, Paulo Silva, Jaime Silva