期刊
PHYSICAL REVIEW LETTERS
卷 121, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.111302
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资金
- National Science Foundation
- Swiss National Science Foundation
- German Ministry for Education and Research
- Max Planck Gesellschaft
- Deutsche Forschungsgemeinschaft
- Netherlands Organisation for Scientific Research (NWO)
- NLeSC
- Weizmann Institute of Science
- I-CORE
- Pazy-Vatat
- Initial Training Network Invisibles (Marie Curie Actions) [PITNGA-2011-289442]
- Fundacao para a Ciencia e a Tecnologia
- Region des Pays de la Loire
- Knut and Alice Wallenberg Foundation
- Kavli Foundation
- Istituto Nazionale di Fisica Nucleare
- Laboratori Nazionali del Gran Sasso
- Direct For Mathematical & Physical Scien
- Division Of Physics [1413495] Funding Source: National Science Foundation
We report on a search for weakly interacting massive particles (WIMPs) using 278.8 days of data collected with the XENON1T experiment at LNGS. XENON1T utilizes a liquid xenon time projection chamber with a fiducial mass of (1.30 +/- 0.01) ton, resulting in a 1.0 ton yr exposure. The energy region of interest, [1.4; 10.6] keV(ee) ([4.9; 40.9] keV(nr)), exhibits an ultralow electron recoil background rate of [82(-3)(+5) (syst) +/- 3 stat)] events/ton yr keV(ee)). No significant excess over background is found, and a profile likelihood analysis parametrized in spatial and energy dimensions excludes new parameter space for the WIMP-nucleon spin-independent elastic scatter cross section for WIMP masses above 6 GeV/c(2), with a minimum of 4.1 x 10(-47) cm(2) at 30 GeV/c(2) and a 90% confidence level.
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