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 / Aprile, E., Aalbers, J., Abe, K., Ahmed Maouloud, S., Althueser, L., Andrieu, B., Angelino, E., Anton Martin, D., Arneodo, F., Baudis, L., Bazyk, M., Bellagamba, L., Biondi, R., Bismark, A., Boese, K., Brown, A., Bruno, G., Budnik, R., Cai, C., Capelli, C., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 134:16(2025). [10.1103/PhysRevLett.134.161004]

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

Iacovacci M.;Mastroianni S.;
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
Search for Light Dark Matter in Low-Energy Ionization Signals from XENONnT / Aprile, E., Aalbers, J., Abe, K., Ahmed Maouloud, S., Althueser, L., Andrieu, B., Angelino, E., Anton Martin, D., Arneodo, F., Baudis, L., Bazyk, M., Bellagamba, L., Biondi, R., Bismark, A., Boese, K., Brown, A., Bruno, G., Budnik, R., Cai, C., Capelli, C., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 134:16(2025). [10.1103/PhysRevLett.134.161004]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/1045695
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 20
  • ???jsp.display-item.citation.isi??? ND
social impact