Search for dark matter particle interactions in an extended nuclear recoil energy window with the LUX-ZEPLIN experiment

by Henning Flacher (University of Bristol (GB))

Tuesday 24 Nov 2026, 11:00 → 12:00 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

The LUX-ZEPLIN (LZ) experiment searches for dark matter using a dual-phase xenon time projection chamber at the Sanford Underground Research Facility in Lead, South Dakota, USA, and has set world-leading limits on weakly interacting massive particles (WIMPs). In the general non-relativistic effective field theory of WIMP-nucleus scattering, both momentum-dependent operators at high WIMP mass and inelastic transitions can produce recoil spectra peaking at O(100) keV, well above the range covered by conventional analyses. This talk will discuss the results of a recent search based on an exposure of 2.84 tonne-years and extending the nuclear recoil window to 270 keV, a region where the modelled backgrounds contribute well under one event across this exposure.

 

 

Refreshments will be served at 10:30