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24 April 2024

» arxiv » 1602.3489

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First spin-dependent WIMP-nucleon cross section limits from the LUX experiment
LUX Collaboration ; D. S. Akerib ; H. M. Araújo ; X. Bai ; A. J. Bailey ; J. Balajthy ; P. Beltrame ; E. P. Bernard ; A. Bernstein ; T. P. Biesiadzinski ; E. M. Boulton ; A. Bradley ; R. Bramante ; S. B. Cahn ; M. C. Carmona-Benitez ; C. Chan ; J. J. Chapman ; A. A. Chiller ; C. Chiller ; A. Currie ; J. E. Cutter ; T. J. R. Davison ; L. de Viveiros ; A. Dobi ; J. E. Y. Dobson ; E. Druszkiewicz ; B. N. Edwards ; C. H. Faham ; S. Fiorucci ; R. J. Gaitskell ; V. M. Gehman ; C. Ghag ; K. R. Gibson ; M. G. D. Gilchriese ; C. R. Hall ; M. Hanhardt ; S. J. Haselschwardt ; S. A. Hertel ; D. P. Hogan ; M. Horn ; D. Q. Huang ; C. M. Ignarra ; M. Ihm ; R. G. Jacobsen ; W. Ji ; K. Kazkaz ; D. Khaitan ; R. Knoche ; N. A. Larsen ; C. Lee ; B. G. Lenardo ; K. T. Lesko ; A. Lindote ; M. I. Lopes ; D. C. Malling ; A. Manalaysay ; R. L. Mannino ; M. F. Marzioni ; D. N. McKinsey ; D. M. Mei ; J. Mock ; M. Moongweluwan ; J. A. Morad ; A. St. J. Murphy ; C. Nehrkorn ; H. N. Nelson ; F. Neves ; K. O'Sullivan ; K. C. Oliver-Mallory ; R. A. Ott ; K. J. Palladino ; M. Pangilinan ; E. K. Pease ; P. Phelps ; L. Reichhart ; C. Rhyne ; S. Shaw ; T. A. Shutt ; C. Silva ; V. N. Solovov ; P. Sorensen ; S. Stephenson ; T. J. Sumner ; M. Szydagis ; D. J. Taylor ; W. Taylor ; B. P. Tennyson ; P. A. Terman ; D. R. Tiedt ; W. H. To ; M. Tripathi ; L. Tvrznikova ; S. Uvarov ; J. R. Verbus ; R. C. Webb ; J. T. White ; T. J. Whitis ; M. S. Witherell ; F. L. H. Wolfs ; K. Yazdani ; S. K. Young ; C. Zhang ;
Date:	10 Feb 2016
Abstract:	We present the first experimental constraints on the spin-dependent WIMP-nucleon elastic cross sections from LUX data acquired in 2013. LUX is a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility (Lead, South Dakota), which is designed to observe the recoil signature of galactic WIMPs scattering from xenon nuclei. A profile likelihood ratio analysis of $1.4~ imes~10^{4}~ ext{kg}cdot~ ext{days}$ of fiducial exposure allows 90% CL upper limits to be set on the WIMP-neutron (WIMP-proton) cross section of $sigma_n~=~9.4~ imes~10^{-41}~ ext{cm}^2$ ($sigma_p~=~2.9~ imes~10^{-39}~ ext{cm}^2$) at 33~GeV/c$^2$. The spin-dependent WIMP-neutron limit is the most sensitive constraint to date for this channel.
Source:	arXiv, 1602.3489
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