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Search for Electronic Recoil Event Rate Modulation with 4 Years of XENON100 Data.
Aprile, E; Aalbers, J; Agostini, F; Alfonsi, M; Amaro, F D; Anthony, M; Arneodo, F; Barrow, P; Baudis, L; Bauermeister, B; Benabderrahmane, M L; Berger, T; Breur, P A; Brown, A; Brown, E; Bruenner, S; Bruno, G; Budnik, R; Bütikofer, L; Calvén, J; Cardoso, J M R; Cervantes, M; Cichon, D; Coderre, D; Colijn, A P; Conrad, J; Cussonneau, J P; Decowski, M P; de Perio, P; Di Gangi, P; Di Giovanni, A; Diglio, S; Eurin, G; Fei, J; Ferella, A D; Fieguth, A; Franco, D; Fulgione, W; Gallo Rosso, A; Galloway, M; Gao, F; Garbini, M; Geis, C; Goetzke, L W; Greene, Z; Grignon, C; Hasterok, C; Hogenbirk, E; Itay, R; Kaminsky, B.
Affiliation
  • Aprile E; Physics Department, Columbia University, New York, New York 10027, USA.
  • Aalbers J; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Agostini F; INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
  • Alfonsi M; Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
  • Amaro FD; Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
  • Anthony M; Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
  • Arneodo F; Physics Department, Columbia University, New York, New York 10027, USA.
  • Barrow P; New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
  • Baudis L; Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
  • Bauermeister B; Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
  • Benabderrahmane ML; Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
  • Berger T; New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
  • Breur PA; Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
  • Brown A; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Brown E; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Bruenner S; Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
  • Bruno G; Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
  • Budnik R; INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
  • Bütikofer L; Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, 7610001, Israel.
  • Calvén J; Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
  • Cardoso JM; Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
  • Cervantes M; Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
  • Cichon D; Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
  • Coderre D; Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
  • Colijn AP; Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
  • Conrad J; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Cussonneau JP; Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
  • Decowski MP; SUBATECH, Ecole des Mines de Nantes, CNRS/In2p3, Université de Nantes, Nantes 44307, France.
  • de Perio P; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
  • Di Gangi P; Physics Department, Columbia University, New York, New York 10027, USA.
  • Di Giovanni A; Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
  • Diglio S; New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
  • Eurin G; SUBATECH, Ecole des Mines de Nantes, CNRS/In2p3, Université de Nantes, Nantes 44307, France.
  • Fei J; Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
  • Ferella AD; Department of Physics, University of California, San Diego, California 92093, USA.
  • Fieguth A; Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
  • Franco D; Institut für Kernphysik, Wilhelms-Universität Münster, 48149 Münster, Germany.
  • Fulgione W; Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
  • Gallo Rosso A; INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
  • Galloway M; INFN-Torino and Osservatorio Astrofisico di Torino, 10125 Torino, Italy.
  • Gao F; INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
  • Garbini M; Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
  • Geis C; Physics Department, Columbia University, New York, New York 10027, USA.
  • Goetzke LW; Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
  • Greene Z; Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
  • Grignon C; Physics Department, Columbia University, New York, New York 10027, USA.
  • Hasterok C; Physics Department, Columbia University, New York, New York 10027, USA.
  • Hogenbirk E; Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
  • Itay R; Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
  • Kaminsky B; Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
Phys Rev Lett ; 118(10): 101101, 2017 Mar 10.
Article in En | MEDLINE | ID: mdl-28339273
ABSTRACT
We report on a search for electronic recoil event rate modulation signatures in the XENON100 data accumulated over a period of 4 yr, from January 2010 to January 2014. A profile likelihood method, which incorporates the stability of the XENON100 detector and the known electronic recoil background model, is used to quantify the significance of periodicity in the time distribution of events. There is a weak modulation signature at a period of 431_{-14}^{+16} day in the low energy region of (2.0-5.8) keV in the single scatter event sample, with a global significance of 1.9σ; however, no other more significant modulation is observed. The significance of an annual modulation signature drops from 2.8σ, from a previous analysis of a subset of this data, to 1.8σ with all data combined. Single scatter events in the low energy region are thus used to exclude the DAMA/LIBRA annual modulation as being due to dark matter electron interactions via axial vector coupling at 5.7σ.
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Full text: 1 Database: MEDLINE Language: En Year: 2017 Type: Article
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Full text: 1 Database: MEDLINE Language: En Year: 2017 Type: Article