Speaker
Description
The LUX-ZEPLIN (LZ) experiment employs a two-phase Xe time projection chamber designed to search for rare interactions between dark matter and ordinary matter, nearly a mile underground at the Sanford Underground Research Facility, South Dakota, USA. In this talk, I will present the latest results from LZ, focused on low-mass dark matter and solar neutrinos using a 5.7 tonne-year exposure and yielding the strictest constraints to date on spin-independent WIMP nucleus and spin-dependent WIMP–neutron scattering down to WIMP masses of 5 GeV/c^2, and competitive limits all the way down to 3 GeV/c^2. I will also discuss the sensitivity of LZ to known low-energy processes, including coherent elastic neutrino–nucleus scattering due to Boron-8 solar neutrinos, demonstrating both the breadth of physics now being probed by the experiment and the first greater than 3 sigma evidence for the neutrino fog of solar origin, which will ultimately limit spin-independent searches for WIMPs with masses below 10 GeV/c^2.