Dark Matter Search Results from a One Ton-Year Exposure of XENON1T
Affiliations
- 1 Physics Department, Columbia University, New York, New York 10027, USA.
- 2 Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, Netherlands.
- 3 Department of Physics and Astronomy, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
- 4 Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
- 5 Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany.
- 6 LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
- 7 New York University Abu Dhabi, PO Box 129188,Abu Dhabi, United Arab Emirates.
- 8 Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
- 9 Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
- 10 Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
- 11 Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
- 12 Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 7610001, Israel.
- 13 Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
- 14 SUBATECH, IMT Atlantique, CNRS/IN2P3, Université de Nantes, Nantes 44307, France.
- 15 Department of Physics, University of California, San Diego, California 92093, USA.
- 16 INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
- 17 INFN-Torino and Osservatorio Astrofisico di Torino, 10125 Torino, Italy.
- 18 Department of Physics & Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA.
- 19 Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
- 20 Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA.
- 21 LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris 75252, France.
- 22 Physics & Astronomy Department, University of California, Los Angeles, California 90095, USA.
- PMID: 30265108
- DOI: 10.1103/PhysRevLett.121.111302
Dark Matter Search Results from a One Ton-Year Exposure of XENON1T
Authors
Affiliations
- 1 Physics Department, Columbia University, New York, New York 10027, USA.
- 2 Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, Netherlands.
- 3 Department of Physics and Astronomy, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
- 4 Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
- 5 Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany.
- 6 LIBPhys, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
- 7 New York University Abu Dhabi, PO Box 129188,Abu Dhabi, United Arab Emirates.
- 8 Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
- 9 Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
- 10 Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
- 11 Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
- 12 Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 7610001, Israel.
- 13 Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
- 14 SUBATECH, IMT Atlantique, CNRS/IN2P3, Université de Nantes, Nantes 44307, France.
- 15 Department of Physics, University of California, San Diego, California 92093, USA.
- 16 INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
- 17 INFN-Torino and Osservatorio Astrofisico di Torino, 10125 Torino, Italy.
- 18 Department of Physics & Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA.
- 19 Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
- 20 Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA.
- 21 LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris 75252, France.
- 22 Physics & Astronomy Department, University of California, Los Angeles, California 90095, USA.
- PMID: 30265108
- DOI: 10.1103/PhysRevLett.121.111302
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 (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 4.1×10^{-47} cm^{2} at 30 GeV/c^{2} and a 90% confidence level.
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