Results from a search for dark matter in the complete LUX exposure
Abstract
We report constraints on spin-independent weakly interacting massive particle (WIMP)-nucleon scattering using a 3.35e4 kg-day exposure of the Large Underground Xenon (LUX) experiment. A dual-phase xenon time projection chamber with 250 kg of active mass is operated at the Sanford Underground Research Facility under Lead, South Dakota (USA). With roughly fourfold improvement in sensitivity for high WIMP masses relative to our previous results, this search yields no evidence of WIMP nuclear recoils. At a WIMP mass of 50 GeV/c^2, WIMP-nucleon spin-independent cross sections above 2.2e-46 cm^2 are excluded at the 90% confidence level. When combined with the previously reported LUX exposure, this exclusion strengthens to 1.1e-46 cm^2 at 50 GeV/c^2.
Keywords
Cite
@article{arxiv.1608.07648,
title = {Results from a search for dark matter in the complete LUX exposure},
author = {D. S. Akerib and S. Alsum and H. M. Araújo and X. Bai and A. J. Bailey and J. Balajthy and P. Beltrame and E. P. Bernard and A. Bernstein and T. P. Biesiadzinski and E. M. Boulton and R. Bramante and P. Brás and D. Byram and S. B. Cahn and M. C. Carmona-Benitez and C. Chan and A. A. Chiller and C. Chiller and A. Currie and J. E. Cutter and T. J. R. Davison and A. Dobi and J. E. Y. Dobson and E. Druszkiewicz and B. N. Edwards and C. H. Faham and S. Fiorucci and R. J. Gaitskell and V. M. Gehman and C. Ghag and K. R. Gibson and M. G. D. Gilchriese and C. R. Hall and M. Hanhardt and S. J. Haselschwardt and S. A. Hertel and D. P. Hogan and M. Horn and D. Q. Huang and C. M. Ignarra and M. Ihm and R. G. Jacobsen and W. Ji and K. Kamdin and K. Kazkaz and D. Khaitan and R. Knoche and N. A. Larsen and C. Lee and B. G. Lenardo and K. T. Lesko and A. Lindote and M. I. Lopes and A. Manalaysay and R. L. Mannino and M. F. Marzioni and D. N. McKinsey and D. M. Mei and J. Mock and M. Moongweluwan and J. A. Morad and A. St. J. Murphy and C. Nehrkorn and H. N. Nelson and F. Neves and K. O`Sullivan and K. C. Oliver-Mallory and K. J. Palladino and E. K. Pease and P. Phelps and L. Reichhart and C. Rhyne and S. Shaw and T. A. Shutt and C. Silva and M. Solmaz and V. N. Solovov and P. Sorensen and S. Stephenson and T. J. Sumner and M. Szydagis and D. J. Taylor and W. C. Taylor and B. P. Tennyson and P. A. Terman and D. R. Tiedt and W. H. To and M. Tripathi and L. Tvrznikova and S. Uvarov and J. R. Verbus and R. C. Webb and J. T. White and T. J. Whitis and M. S. Witherell and F. L. H. Wolfs and J. Xu and K. Yazdani and S. K. Young and C. Zhang},
journal= {arXiv preprint arXiv:1608.07648},
year = {2017}
}
Comments
This version includes a combined analysis with previously published LUX results, and matches the version published in PRL