Search for Light Dark Matter in Low-Energy Ionization Signals from XENONnT

(XENON Collaboration)

Research output: Contribution to journalArticlepeer-review

Abstract

We report on a blinded search for dark matter with single- and few-electron signals in the first science run of XENONnT relying on a novel detector response framework that is physics model dependent. We derive 90% confidence upper limits for dark matter-electron interactions. Heavy and light mediator cases are considered for the standard halo model and dark matter up-scattered in the Sun. We set stringent new limits on dark matter-electron scattering via a heavy mediator with a mass within 10-20 MeV/c2 and electron absorption of axionlike particles and dark photons for mχ below 0.03 keV/c2.

Original languageEnglish (US)
Article number161004
JournalPhysical Review Letters
Volume134
Issue number16
DOIs
StatePublished - Apr 25 2025

ASJC Scopus subject areas

  • General Physics and Astronomy

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