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Position Reconstruction in a Dual Phase Xenon Scintillation Detector
V. N. Solovov, V. A. Belov, D. Yu. Akimov +33
We studied the application of statistical reconstruction algorithms, namely maximum likelihood and least squares methods, to the problem of event reconstruction in a dual phase liq…
Radio-assay of Titanium samples for the LUX Experiment
D. S. Akerib, X. Bai, S. Bedikian +63
We report on the screening of samples of titanium metal for their radio-purity. The screening process described in this work led to the selection of materials used in the construct…
Performance data from the ZEPLIN-III second science run
P. Majewski, V. N. Solovov, D. Yu. Akimov +32
ZEPLIN-III is a two-phase xenon direct dark matter experiment located at the Boulby Mine (UK). After its first science run in 2008 it was upgraded with: an array of low background…
Quenching Factor for Low Energy Nuclear Recoils in a Plastic Scintillator
L. Reichhart, D. Yu. Akimov, H. M. Araujo +34
Plastic scintillators are widely used in industry, medicine and scientific research, including nuclear and particle physics. Although one of their most common applications is in ne…
LUXSim: A Component-Centric Approach to Low-Background Simulations
D. S. Akerib, X. Bai, S. Bedikian +60
Geant4 has been used throughout the nuclear and high-energy physics community to simulate energy depositions in various detectors and materials. These simulations have mostly been…
Single electron emission in two-phase xenon with application to the detection of coherent neutrino-nucleus scattering
E. Santos, B. Edwards, V. Chepel +34
We present an experimental study of single electron emission in ZEPLIN-III, a two-phase xenon experiment built to search for dark matter WIMPs, and discuss applications enabled by…
After LUX: The LZ Program
D. C. Malling, D. S. Akerib, H. M. Araujo +71
The LZ program consists of two stages of direct dark matter searches using liquid Xe detectors. The first stage will be a 1.5-3 tonne detector, while the last stage will be a 20 to…
WIMP-nucleon cross-section results from the second science run of ZEPLIN-III
D. Yu. Akimov, H. M. Araujo, E. J. Barnes +34
We report experimental upper limits on WIMP-nucleon elastic scattering cross sections from the second science run of ZEPLIN-III at the Boulby Underground Laboratory. A raw fiducial…
Data Acquisition and Readout System for the LUX Dark Matter Experiment
D. S. Akerib, X. Bai, S. Bedikian +60
LUX is a two-phase (liquid/gas) xenon time projection chamber designed to detect nuclear recoils from interactions with dark matter particles. Signals from the LUX detector are pro…
ZE3RA: The ZEPLIN-III Reduction and Analysis Package
F. Neves, D. Yu. Akimov, H. M. Araújo +34
ZE3RA is the software package responsible for processing the raw data from the ZEPLIN-III dark matter experiment and its reduction into a set of parameters used in all subsequent a…
Nuclear recoil scintillation and ionisation yields in liquid xenon from ZEPLIN-III data
M. Horn, V. A. Belov, D. Yu. Akimov +33
Scintillation and ionisation yields for nuclear recoils in liquid xenon above 10 keVnr (nuclear recoil energy) are deduced from data acquired using broadband Am-Be neutron sources.…
Radioactivity Backgrounds in ZEPLIN-III
H. M. Araujo, D. Yu. Akimov, E. J. Barnes +32
We examine electron and nuclear recoil backgrounds from radioactivity in the ZEPLIN-III dark matter experiment at Boulby. The rate of low-energy electron recoils in the liquid xeno…
A search for light dark matter in XENON10 data
J. Angle, E. Aprile, F. Arneodo +34
We report results of a search for light (<10 GeV) particle dark matter with the XENON10 detector. The event trigger was sensitive to a single electron, with the analysis threshold…