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Träfflista för sökning "WFRF:(Bruenner S.) srt2:(2021)"

Sökning: WFRF:(Bruenner S.) > (2021)

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1.
  • Aprile, E., et al. (författare)
  • Search for Coherent Elastic Scattering of Solar B-8 Neutrinos in the XENON1T Dark Matter Experiment
  • 2021
  • Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 126:9
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on a search for nuclear recoil signals from solar B-8 neutrinos elastically scattering off xenon nuclei in XENON1T data, lowering the energy threshold from 2.6 to 1.6 keV. We develop a variety of novel techniques to limit the resulting increase in backgrounds near the threshold. No significant B-8 neutrinolike excess is found in an exposure of 0.6 t x y. For the first time, we use the nondetection of solar neutrinos to constrain the light yield from 1-2 keV nuclear recoils in liquid xenon, as well as nonstandard neutrino-quark interactions. Finally, we improve upon world-leading constraints on dark matter-nucleus interactions for dark matter masses between 3 and 11 GeV c(-2) by as much as an order of magnitude.
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2.
  • Aprile, E., et al. (författare)
  • Search for inelastic scattering of WIMP dark matter in XENON1T
  • 2021
  • Ingår i: Physical Review D. - 2470-0010 .- 2470-0029. ; 103:6
  • Tidskriftsartikel (refereegranskat)abstract
    • We report the results of a search for the inelastic scattering of weakly interacting massive particles (WIMPs) in the XENON1T dark matter experiment. Scattering off Xe-129 is the most sensitive probe of inelastic WIMP interactions, with a signature of a 39.6 keV deexcitation photon detected simultaneously with the nuclear recoil. Using an exposure of 0.83 tonne-years, we find no evidence of inelastic WIMP scattering with a significance of more than 2 sigma. A profile-likelihood ratio analysis is used to set upper limits on the cross section of WIMP-nucleus interactions. We exclude new parameter space for WIMPs heavier than 100 GeV/c(2), with the strongest upper limit of 3.3 x 10(-39) cm(2) for 130 GeV/c(2) WIMPs at 90% confidence level.
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