We report on a blinded analysis of low-energy electronic recoil data from the first science run of the XENONnT dark matter experiment. Novel subsystems and the increased 5.9 ton liquid xenon target reduced the background in the (1, 30) keV search region to (15.8±1.3)  events/(ton×year×keV), the lowest ever achieved in a dark matter detector and ∼5 times lower than in XENON1T. With an exposure of 1.16 ton-years, we observe no excess above background and set stringent new limits on solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter.

Search for new physics in electronic recoil data from XENONnT / Aprile, E., Abe, K., Agostini, F., Ahmed Maouloud, S., Althueser, L., Andrieu, B., Angelino, E., Angevaare, J.R., Antochi, V.C., Antón Martin, D., Arneodo, F., Baudis, L., Baxter, A.L., Bellagamba, L., Biondi, R., Bismark, A., Brown, A., Bruenner, S., Bruno, G., Budnik, R., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 129:16(2022), pp. 1-10. [10.1103/PhysRevLett.129.161805]

Search for new physics in electronic recoil data from XENONnT

Capelli, C.;
2022

Abstract

We report on a blinded analysis of low-energy electronic recoil data from the first science run of the XENONnT dark matter experiment. Novel subsystems and the increased 5.9 ton liquid xenon target reduced the background in the (1, 30) keV search region to (15.8±1.3)  events/(ton×year×keV), the lowest ever achieved in a dark matter detector and ∼5 times lower than in XENON1T. With an exposure of 1.16 ton-years, we observe no excess above background and set stringent new limits on solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter.
2022
xenon; electronic recoils; solar axions; neutrino magnetic moment; bosonic dark matter
01 Pubblicazione su rivista::01a Articolo in rivista
Search for new physics in electronic recoil data from XENONnT / Aprile, E., Abe, K., Agostini, F., Ahmed Maouloud, S., Althueser, L., Andrieu, B., Angelino, E., Angevaare, J.R., Antochi, V.C., Antón Martin, D., Arneodo, F., Baudis, L., Baxter, A.L., Bellagamba, L., Biondi, R., Bismark, A., Brown, A., Bruenner, S., Bruno, G., Budnik, R., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 129:16(2022), pp. 1-10. [10.1103/PhysRevLett.129.161805]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1773589
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