Search for Electronic Recoil Event Rate Modulation with 4 Years of XENON100 Data.
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.
Physics Department, Columbia University, New York, New York 10027, USA.
E
E
Aprile
Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
J
J
Aalbers
INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.|Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
F
F
Agostini
Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
M
M
Alfonsi
Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
F D
FD
Amaro
Physics Department, Columbia University, New York, New York 10027, USA.
M
M
Anthony
New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
F
F
Arneodo
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
P
P
Barrow
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
L
L
Baudis
Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
B
B
Bauermeister
New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
M L
ML
Benabderrahmane
Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
T
T
Berger
Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
P A
PA
Breur
Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
A
A
Brown
Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
E
E
Brown
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
S
S
Bruenner
INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
G
G
Bruno
Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, 7610001, Israel.
R
R
Budnik
Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
L
L
Bütikofer
Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
J
J
Calvén
Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
J M R
JM
Cardoso
Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
M
M
Cervantes
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
D
D
Cichon
Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
D
D
Coderre
Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
A P
AP
Colijn
Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
J
J
Conrad
SUBATECH, Ecole des Mines de Nantes, CNRS/In2p3, Université de Nantes, Nantes 44307, France.
J P
JP
Cussonneau
Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
M P
MP
Decowski
Physics Department, Columbia University, New York, New York 10027, USA.
P
P
de Perio
Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
P
P
Di Gangi
New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
A
A
Di Giovanni
SUBATECH, Ecole des Mines de Nantes, CNRS/In2p3, Université de Nantes, Nantes 44307, France.
S
S
Diglio
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
G
G
Eurin
Department of Physics, University of California, San Diego, California 92093, USA.
J
J
Fei
Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
A D
AD
Ferella
Institut für Kernphysik, Wilhelms-Universität Münster, 48149 Münster, Germany.
A
A
Fieguth
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
D
D
Franco
INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.|INFN-Torino and Osservatorio Astrofisico di Torino, 10125 Torino, Italy.
W
W
Fulgione
INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
A
A
Gallo Rosso
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
M
M
Galloway
Physics Department, Columbia University, New York, New York 10027, USA.
F
F
Gao
Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
M
M
Garbini
Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
C
C
Geis
Physics Department, Columbia University, New York, New York 10027, USA.
L W
LW
Goetzke
Physics Department, Columbia University, New York, New York 10027, USA.
Z
Z
Greene
Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
C
C
Grignon
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
C
C
Hasterok
Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
E
E
Hogenbirk
Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, 7610001, Israel.
R
R
Itay
Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
B
B
Kaminsky
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
G
G
Kessler
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
A
A
Kish
Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, 7610001, Israel.
H
H
Landsman
Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
R F
RF
Lang
Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, 7610001, Israel.
D
D
Lellouch
Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, 7610001, Israel.
L
L
Levinson
Physics Department, Columbia University, New York, New York 10027, USA.
Q
Q
Lin
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
S
S
Lindemann
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
M
M
Lindner
Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
J A M
JA
Lopes
Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, 7610001, Israel.
A
A
Manfredini
New York University Abu Dhabi, Abu Dhabi, United Arab Emirates.
I
I
Maris
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
T
T
Marrodán Undagoitia
SUBATECH, Ecole des Mines de Nantes, CNRS/In2p3, Université de Nantes, Nantes 44307, France.
J
J
Masbou
Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
F V
FV
Massoli
Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
D
D
Masson
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
D
D
Mayani
Physics Department, Columbia University, New York, New York 10027, USA.
M
M
Messina
SUBATECH, Ecole des Mines de Nantes, CNRS/In2p3, Université de Nantes, Nantes 44307, France.
K
K
Micheneau
INFN-Torino and Osservatorio Astrofisico di Torino, 10125 Torino, Italy.
B
B
Miguez
INFN-Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, 67100 L'Aquila, Italy.
A
A
Molinario
Institut für Kernphysik, Wilhelms-Universität Münster, 48149 Münster, Germany.
M
M
Murra
Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA.
J
J
Naganoma
Department of Physics, University of California, San Diego, California 92093, USA.
K
K
Ni
Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
U
U
Oberlack
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
P
P
Pakarha
Oskar Klein Centre, Department of Physics, Stockholm University, AlbaNova, Stockholm SE-10691, Sweden.
B
B
Pelssers
SUBATECH, Ecole des Mines de Nantes, CNRS/In2p3, Université de Nantes, Nantes 44307, France.
R
R
Persiani
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
F
F
Piastra
Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
J
J
Pienaar
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
V
V
Pizzella
Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
M-C
MC
Piro
Physics Department, Columbia University, New York, New York 10027, USA.
G
G
Plante
Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot, 7610001, Israel.
N
N
Priel
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
L
L
Rauch
Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
S
S
Reichard
Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
C
C
Reuter
Physics Department, Columbia University, New York, New York 10027, USA.
A
A
Rizzo
Institut für Kernphysik, Wilhelms-Universität Münster, 48149 Münster, Germany.
S
S
Rosendahl
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
N
N
Rupp
Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
J M F
JM
Dos Santos
Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
G
G
Sartorelli
Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
M
M
Scheibelhut
Institut für Physik & Exzellenzcluster PRISMA, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany.
S
S
Schindler
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
J
J
Schreiner
Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
M
M
Schumann
LPNHE, Universit Pierre et Marie Curie, Universit Paris Diderot, CNRS/IN2P3, Paris 75252, France.
L
L
Scotto Lavina
Department of Physics and Astrophysics, University of Bologna and INFN-Bologna, 40126 Bologna, Italy.
M
M
Selvi
Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA.
P
P
Shagin
Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal.
M
M
Silva
Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
H
H
Simgen
Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany.
M V
MV
Sivers
Physics & Astronomy Department, University of California, Los Angeles, California 90095, USA.
A
A
Stein
SUBATECH, Ecole des Mines de Nantes, CNRS/In2p3, Université de Nantes, Nantes 44307, France.
D
D
Thers
Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.
A
A
Tiseni
INFN-Torino and Osservatorio Astrofisico di Torino, 10125 Torino, Italy.
G
G
Trinchero
Nikhef and the University of Amsterdam, Science Park, 1098XG Amsterdam, The Netherlands.|Department of Physics & Kavli Institute of Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA.
C
C
Tunnell
Physics & Astronomy Department, University of California, Los Angeles, California 90095, USA.
H
H
Wang
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
Y
Y
Wei
Institut für Kernphysik, Wilhelms-Universität Münster, 48149 Münster, Germany.
C
C
Weinheimer
Physik-Institut, University of Zurich, 8057 Zurich, Switzerland.
J
J
Wulf
Department of Physics, University of California, San Diego, California 92093, USA.
J
J
Ye
Physics Department, Columbia University, New York, New York 10027, USA.
Y
Y
Zhang