First Dark Matter Search with Nuclear Recoils from the XENONnT Experiment

dc.citation.articleNumber041003en_US
dc.citation.issueNumber4en_US
dc.citation.journalTitlePhysical Review Lettersen_US
dc.citation.volumeNumber131en_US
dc.contributor.authorXENON Collaborationen_US
dc.date.accessioned2024-05-03T15:51:05Zen_US
dc.date.available2024-05-03T15:51:05Zen_US
dc.date.issued2023en_US
dc.description.abstractWe report on the first search for nuclear recoils from dark matter in the form of weakly interacting massive particles (WIMPs) with the XENONnT experiment, which is based on a two-phase time projection chamber with a sensitive liquid xenon mass of 5.9 ton. During the (1.09±0.03) ton yr exposure used for this search, the intrinsic 85Kr and 222Rn concentrations in the liquid target are reduced to unprecedentedly low levels, giving an electronic recoil background rate of (15.8±1.3) events/ton yr keV in the region of interest. A blind analysis of nuclear recoil events with energies between 3.3 and 60.5 keV finds no significant excess. This leads to a minimum upper limit on the spin-independent WIMP-nucleon cross section of 2.58×10−47 cm2 for a WIMP mass of 28 GeV/c2 at 90% confidence level. Limits for spin-dependent interactions are also provided. Both the limit and the sensitivity for the full range of WIMP masses analyzed here improve on previous results obtained with the XENON1T experiment for the same exposure.en_US
dc.identifier.citationXENON Collaboration. (2023). First Dark Matter Search with Nuclear Recoils from the XENONnT Experiment. Physical Review Letters, 131(4), 041003. https://doi.org/10.1103/PhysRevLett.131.041003en_US
dc.identifier.digitalPhysRevLett-131-041003en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.131.041003en_US
dc.identifier.urihttps://hdl.handle.net/1911/115527en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license. Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleFirst Dark Matter Search with Nuclear Recoils from the XENONnT Experimenten_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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