Results on the Spin-Dependent Scattering of Weakly Interacting Massive Particles on Nucleons from the Run 3 Data of the LUX Experiment.

D S Akerib ,S Fiorucci,C Silva,M Pangilinan,S Stephenson,P Phelps,S Shaw,M Ihm,E Druszkiewicz,L Reichhart,W Ji,C Chiller,F Neves,K Yazdani,A Lindote,M Hanhardt,L De Viveiros,K O’Sullivan,M Tripathi,D Khaitan,C Nehrkorn,X Bai,M Horn,A Dobi,R Bramante,A Manalaysay,C Rhyne,C Lee,L Tvrznikova,R Knoche,S Uvarov,M Moongweluwan,P Beltrame,C Chan,A Currie,A Bradley,K Kazkaz,C Ghag,J Balajthy,C Zhang,M Szydagis,Wc Taylor ,Adam Bernstein ,N A Larsen ,B P Tennyson ,J T White ,S J Haselschwardt ,S A Hertel ,K J Palladino ,Jeremy Chapman ,D R Tiedt ,C Hall ,T P Biesiadzinski ,J Möck ,D J Taylor ,J E Cutter ,R J Gaitskell ,R L Mannino ,R G Jacobsen ,H N Nelson ,Di Huang ,V Solovov ,M S Witherell ,Dongming Mei ,A A Chiller ,D N Mckinsey ,A J Bailey ,E M Boulton ,S K Young ,P Sørensen ,P A Terman ,S B Cahn ,A St J Murphy ,B N Edwards ,T J R Davison ,W H To ,M Gilchriese ,C.h Faham ,C M Ignarra ,D P Hogan ,I Lopes ,J.r Verbus ,E P Bernard ,T J Whitis ,F L H Wolfs ,E K Pease ,H M Araújo ,K T Lesko ,R Webb ,D.c Malling ,B G Lenardo ,R A Ott ,T J Sumner ,V M Gehman ,T Shutt ,K C Oliver-Mallory ,J E Y Dobson ,M C Carmona-Benitez ,K Gibson ,M F Marzioni ,J A Morad

doi:10.1103/physrevlett.116.161302

Results on the Spin-Dependent Scattering of Weakly Interacting Massive Particles on Nucleons from the Run 3 Data of the LUX Experiment.

D S Akerib , S Fiorucci + Show 99 more

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https://doi.org/10.1103/physrevlett.116.161302

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Journal: Physical Review Letters	Publication Date: Apr 20, 2016
Citations: 138	License type: publisher-specific, author manuscript

Affiliation: Brown University, Case Western Reserve University, Lawrence Berkeley National Laboratory, University of Rochester, University College London, University of South Dakota, University of Coimbra, Imperial College London, South Dakota School of Mines and Technology, University of California, Santa Barbara, University of California, Davis, Yale University, University of Maryland, College Park, University of Edinburgh

#Dual-phase Xenon Time Projection Chamber #Sanford Underground Research Facility + Show 8 more

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Abstract

We present experimental constraints on the spin-dependent WIMP (weakly interacting massive particle)-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 1.4×10^{4} kg day of fiducial exposure allows 90%C.L. upper limits to be set on the WIMP-neutron (WIMP-proton) cross section of σ_{n}=9.4×10^{-41} cm^{2} (σ_{p}=2.9×10^{-39} cm^{2}) at 33 GeV/c^{2}. The spin-dependent WIMP-neutron limit is the most sensitive constraint to date.

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