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Search for New Physics in Electronic Recoil Data from XENONnT


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 tonne liquid xenon target reduced the background in the (1, 30) keV search region to (15.8±1.3) events/(tonne×year×keV), the lowest ever achieved in a dark matter detector and ∼5 times lower than in XENON1T. With an exposure of 1.16 tonne-years, we observe no excess above background and set stringent new limits on solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter.

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 tonne liquid xenon target reduced the background in the (1, 30) keV search region to (15.8±1.3) events/(tonne×year×keV), the lowest ever achieved in a dark matter detector and ∼5 times lower than in XENON1T. With an exposure of 1.16 tonne-years, we observe no excess above background and set stringent new limits on solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter.

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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > General Physics and Astronomy
Uncontrolled Keywords:General Physics and Astronomy
Language:English
Date:13 October 2022
Deposited On:18 Feb 2023 16:02
Last Modified:28 Jun 2024 01:42
Publisher:American Physical Society
ISSN:0031-9007
OA Status:Hybrid
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1103/physrevlett.129.161805
PubMed ID:36306777
Project Information:
  • : FunderNational Science Foundation
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  • : FunderSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
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  • : FunderGerman Ministry for Education and Research
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  • : FunderMax-Planck-Gesellschaft
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  • : FunderDeutsche Forschungsgemeinschaft
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  • : FunderHelmholtz Association
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  • : FunderNederlandse Organisatie voor Wetenschappelijk Onderzoek
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  • : FunderWeizmann Institute of Science
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  • : FunderIsrael Science Foundation
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  • : FunderUnited States-Israel Binational Science Foundation
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  • : FunderFundação para a Ciência e a Tecnologia
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  • : FunderConseil Régional des Pays de la Loire
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  • : FunderKnut och Alice Wallenbergs Stiftelse
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  • : FunderKavli Foundation
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  • : FunderJapan Society for the Promotion of Science
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  • : FunderTsinghua Initiative Scientific Research Program
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  • : FunderLaboratori Nazionali del Gran Sasso
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  • : FunderJST FOREST Program
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  • : FunderInstituto Nazionale di Fisica Nucleare
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  • Content: Published Version
  • Language: English
  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)