First Dark Matter Search Results from the XENON1T Experiment

(XENON Collaboration)

Research output: Contribution to journalArticle

Abstract

We report the first dark matter search results from XENON1T, a ∼2000-kg-target-mass dual-phase (liquid-gas) xenon time projection chamber in operation at the Laboratori Nazionali del Gran Sasso in Italy and the first ton-scale detector of this kind. The blinded search used 34.2 live days of data acquired between November 2016 and January 2017. Inside the (1042±12)-kg fiducial mass and in the [5,40] keVnr energy range of interest for weakly interacting massive particle (WIMP) dark matter searches, the electronic recoil background was (1.93±0.25)×10-4 events/(kg×day×keVee), the lowest ever achieved in such a dark matter detector. A profile likelihood analysis shows that the data are consistent with the background-only hypothesis. We derive the most stringent exclusion limits on the spin-independent WIMP-nucleon interaction cross section for WIMP masses above 10 GeV/c2, with a minimum of 7.7×10-47 cm2 for 35-GeV/c2 WIMPs at 90% C.L.

Original languageEnglish (US)
Article number181301
JournalPhysical Review Letters
Volume119
Issue number18
DOIs
StatePublished - Oct 30 2017

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weakly interacting massive particles
dark matter
particle mass
detectors
exclusion
Italy
xenon
liquid phases
chambers
projection
cross sections
profiles
electronics
gases
interactions
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

First Dark Matter Search Results from the XENON1T Experiment. / (XENON Collaboration).

In: Physical Review Letters, Vol. 119, No. 18, 181301, 30.10.2017.

Research output: Contribution to journalArticle

(XENON Collaboration). / First Dark Matter Search Results from the XENON1T Experiment. In: Physical Review Letters. 2017 ; Vol. 119, No. 18.
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abstract = "We report the first dark matter search results from XENON1T, a ∼2000-kg-target-mass dual-phase (liquid-gas) xenon time projection chamber in operation at the Laboratori Nazionali del Gran Sasso in Italy and the first ton-scale detector of this kind. The blinded search used 34.2 live days of data acquired between November 2016 and January 2017. Inside the (1042±12)-kg fiducial mass and in the [5,40] keVnr energy range of interest for weakly interacting massive particle (WIMP) dark matter searches, the electronic recoil background was (1.93±0.25)×10-4 events/(kg×day×keVee), the lowest ever achieved in such a dark matter detector. A profile likelihood analysis shows that the data are consistent with the background-only hypothesis. We derive the most stringent exclusion limits on the spin-independent WIMP-nucleon interaction cross section for WIMP masses above 10 GeV/c2, with a minimum of 7.7×10-47 cm2 for 35-GeV/c2 WIMPs at 90{\%} C.L.",
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