First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
28 Jul 2023
28 Jul 2023
Historique:
received:
18
07
2022
revised:
06
03
2023
accepted:
07
06
2023
medline:
11
8
2023
pubmed:
11
8
2023
entrez:
11
8
2023
Statut:
ppublish
Résumé
The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9 GeV/c^{2}. The most stringent limit is set for spin-independent scattering at 36 GeV/c^{2}, rejecting cross sections above 9.2×10^{-48} cm at the 90% confidence level.
Identifiants
pubmed: 37566836
doi: 10.1103/PhysRevLett.131.041002
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM