Results from a Search for Dark Matter in the Complete LUX Exposure

LUX Collaboration

Research output: Contribution to journalArticlepeer-review

936 Scopus citations

Abstract

We report constraints on spin-independent weakly interacting massive particle (WIMP)-nucleon scattering using a 3.35×104 kg day exposure of the Large Underground Xenon (LUX) experiment. A dual-phase xenon time projection chamber with 250 kg of active mass is operated at the Sanford Underground Research Facility under Lead, South Dakota (USA). With roughly fourfold improvement in sensitivity for high WIMP masses relative to our previous results, this search yields no evidence of WIMP nuclear recoils. At a WIMP mass of 50 GeV c-2, WIMP-nucleon spin-independent cross sections above 2.2×10-46 cm2 are excluded at the 90% confidence level. When combined with the previously reported LUX exposure, this exclusion strengthens to 1.1×10-46 cm2 at 50 GeV c-2.

Original languageEnglish (US)
Article number021303
JournalPhysical Review Letters
Volume118
Issue number2
DOIs
StatePublished - Jan 11 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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