Abstract
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 , resulting in a 1.0 ton yr exposure. The energy region of interest, (), exhibits an ultralow electron recoil background rate of . 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 , with a minimum of at and a 90% confidence level.
- Received 31 May 2018
- Revised 14 August 2018
DOI:https://doi.org/10.1103/PhysRevLett.121.111302
© 2018 American Physical Society