Akerib, DS;
Alsum, S;
Araújo, HM;
Bai, X;
Bailey, AJ;
Balajthy, J;
Beltrame, P;
... Reichhart, L; + view all
(2018)
Calibration, event reconstruction, data analysis, and limit calculation for the LUX dark matter experiment.
Physical Review D
, 97
(10)
, Article 102008. 10.1103/PhysRevD.97.102008.
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Abstract
The LUX experiment has performed searches for dark-matter particles scattering elastically on xenon nuclei, leading to stringent upper limits on the nuclear scattering cross sections for dark matter. Here, for results derived from 1.4×104 kg days of target exposure in 2013, details of the calibration, event-reconstruction, modeling, and statistical tests that underlie the results are presented. Detector performance is characterized, including measured efficiencies, stability of response, position resolution, and discrimination between electron- and nuclear-recoil populations. Models are developed for the drift field, optical properties, background populations, the electron- and nuclear-recoil responses, and the absolute rate of low-energy background events. Innovations in the analysis include in situ measurement of the photomultipliers' response to xenon scintillation photons, verification of fiducial mass with a low-energy internal calibration source, and new empirical models for low-energy signal yield based on large-sample, in situ calibrations.
| Type: | Article |
|---|---|
| Title: | Calibration, event reconstruction, data analysis, and limit calculation for the LUX dark matter experiment |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.97.102008 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.97.102008 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10050592 |
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