Results on the Spin-Dependent Scattering of Weakly Interacting Massive   Particles on Nucleons from the Run 3 Data of the LUX Experiment
  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 $1.4~\times~10^{4}~\text{kg}\cdot~\text{days}$ of fiducial exposure allows 90% CL upper limits to be set on the WIMP-neutron (WIMP-proton) cross section of $\sigma_n~=~9.4~\times~10^{-41}~\text{cm}^2$ ($\sigma_p~=~2.9~\times~10^{-39}~\text{cm}^2$) at 33 GeV/c$^2$. The spin-dependent WIMP-neutron limit is the most sensitive constraint to date. 
LUX Collaboration: D. S. Akerib, H. M. Ara\'ujo, X. Bai, A. J. Bailey,   J. Balajthy, P. Beltrame, E. P. Bernard, A. Bernste...
hep-ex hep-ph