First Results from the LUX Dark Matter Experiment at the Sanford Underground Research Facility

Akerib, D. S.; Araújo, H. M.; Bai, X.; Bailey, A. J.; Balajthy, J.; Bedikian, S.; Bernard, E. P.; Bernstein, A.; Bolozdynya, A.; Bradley, A.; Byram, D.; Cahn, S. B.; Carmona-Benitez, M. C.; Chan, C.; Chapman, J.; Chiller, A. A.; Chiller, C.; Clark, K.; Coffey, T.; Currie, A.; Curioni, A.; Dazeley, S.; Viveiros, L. de; Dobi, A.; Dobson, J. E. Y.; Dragowsky, E.; Druszkiewicz, E.; Edwards, B. N.; Faham, C.H.; Fiorucci, S.; Flores, C. E.; Gaitskell, R. J.; Gehman, V.M.; Ghag, C.; Gibson, K.R.; Gilchriese, M. G. D.; Hall, C.; Hanhardt, M.; Hertel, S. A.; Horn, M.; Huang, D. Q.; Ihm, M.; Jacobsen, R. G.; Kastens, L.; Kazkaz, K.; Knoche, R.; Kyre, S.; Lander, R.; Larsen, Nicholas; Lee, C.; Leonard, D. S.; Lesko, K. T.; Lindote, A.; Lopes, I.; Lyashenko, A.; Malling, D.C.; Mannino, R. L.; McKinsey, D. N.; Mei, D-M; Mock, J.; Moongweluwan, M.; Morad, J. A.; Morii, M.; Murphy, A. St. J.; Nehrkorn, C.; Nelson, H.; Neves, F.; Nikkel, J. A.; Ott, Richard A.; Pangilinan, M.; Parker, P. D.; Pease, E. K.; Pech, K.; Phelps, P.; Reichhart, L.; Shutt, T.; Silva, C.; Skulski, W.; Sofka, C.; Solovov, V. N.; Sørensen, P.; Stiegler, T.; O’Sullivan, K.; Sumner, T. J.; Svoboda, R.; Sweany, Melinda; Szydagis, M.; Taylor, D. J.; Tennyson, B. P.; Tiedt, D. R.; Tripathi, M.; Uvarov, S.; Verbus, J.R.; Walsh, N.; Webb, R. C.; White, J. T.; White, D.; Witherell, M. S.; Wlasenko, M.; Wolfs, F. L. H.; Woods, M.; Zhang, C

doi:10.1103/physrevlett.112.091303

articlePhysical Review LettersMar 4, 2014BRONZE OA

First Results from the LUX Dark Matter Experiment at the Sanford Underground Research Facility

DSD. S. Akerib HMH. M. Araújo XBX. Bai AJA. J. Bailey JBJ. Balajthy

Case Western Reserve University · Imperial College London · +17 more institutions

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Abstract

The Large Underground Xenon (LUX) experiment is a dual-phase xenon time-projection chamber operating at the Sanford Underground Research Facility (Lead, South Dakota). The LUX cryostat was filled for the first time in the underground laboratory in February 2013. We report results of the first WIMP search data set, taken during the period from April to August 2013, presenting the analysis of 85.3 live days of data with a fiducial volume of 118 kg. A profile-likelihood analysis technique shows our data to be consistent with the background-only hypothesis, allowing 90% confidence limits to be set on spin-independent WIMP-nucleon elastic scattering with a minimum upper limit on the cross section of 7.6 × 10(-46)…

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Keywords

WIMP
Physics
Dark matter
Cryostat
Nuclear physics
Xenon
Time projection chamber
Fiducial marker

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