A new nuclear recoil model for low energy searches in the LUX-ZEPLIN experiment

by Jacopo Siniscalco (UCL)

Tuesday Jan 13, 2026, 12:30 PM → 1:30 PM America/Los_Angeles

48/2-224 - Madrone (SLAC)

With the release of its latest results, the LUX-ZEPLIN (LZ) experiment has again set world leading limits on WIMP dark matter cross-sections. Unlike previous analyses, this recent low energy search pushed into a regime that traditionally has not been well characterised in the detector. Fitting a model comprehensive enough to describe the response of the detector at the level of detail required for such an analysis required new techniques, as well as a new level of understanding of the systematics involved in the DD neutron calibration source. In this talk I will discuss the evolution of the nuclear recoil model, illustrating some of the challenges that were faced and the solutions that had to be introduced to enable LZ's latest result.

https://stanford.zoom.us/j/98973156241?pwd=cEU5RFdlVXoyc0JTeTlDMkozKzQ5UT09

A new nuclear recoil model for low energy searches in the LUX-ZEPLIN experiment.pdf

Jacopo_LZ.m4a

Jacopo_LZ.mp4