Aug 24 – 30, 2025
Xichang Qionghai Hotel
Asia/Shanghai timezone

Search for Light Dark Matter with XENONnT

Aug 27, 2025, 4:00 PM
20m
Conference Room F2-R1

Conference Room F2-R1

Oral Dark Matter and Its Detection Dark Matter and Its Detection

Speaker

Shenyang Shi (Columbia University)

Description

The primary goal of the XENONnT experiment is the direct detection of Weakly Interacting Massive Particles (WIMPs), with a projected sensitivity improvement of an order of magnitude over XENON1T. In this talk, I will present recent results from the search for light dark matter using both scintillation-ionization and ionization-only channels with lowered detection threshold. These complementary analyses set world-leading constraints on dark matter–nucleon and dark matter–electron scattering cross sections. In the relevant mass range, the sensitivity reaches the so-called "neutrino fog"—a regime where coherent neutrino scattering produces irreducible backgrounds that mimic the signal of light dark matter interactions with xenon nuclei.

Collaboration you are representing XENON

Author

Shenyang Shi (Columbia University)

Presentation materials