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.

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

Zavattini, G.;
2025

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.
2025
Aprile, E.; Aalbers, J.; Abe, K.; Ahmed Maouloud, S.; Althueser, L.; Andrieu, B.; Angelino, E.; Antón Martin, D.; Arneodo, F.; Baudis, L.; Bazyk, M.; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2603294
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