Abstract
We report the first dark matter search results from XENON1T, a -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 fiducial mass and in the energy range of interest for weakly interacting massive particle (WIMP) dark matter searches, the electronic recoil background was , 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 , with a minimum of for WIMPs at 90% C.L.
- Received 25 May 2017
DOI:https://doi.org/10.1103/PhysRevLett.119.181301
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Published by the American Physical Society
Physics Subject Headings (PhySH)
Viewpoint
The Relentless Hunt for Dark Matter
Published 30 October 2017
The latest results from two dark matter searches have further ruled out many theoretically attractive dark matter particle candidates.
See more in Physics