High Energy Physics - Experiment
[Submitted on 10 Feb 2016 (v1), last revised 16 May 2016 (this version, v3)]
Title:Results on the Spin-Dependent Scattering of Weakly Interacting Massive Particles on Nucleons from the Run 3 Data of the LUX Experiment
View PDFAbstract: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.
Submission history
From: Adam Bailey [view email][v1] Wed, 10 Feb 2016 19:11:52 UTC (49 KB)
[v2] Wed, 30 Mar 2016 10:56:50 UTC (49 KB)
[v3] Mon, 16 May 2016 10:58:17 UTC (50 KB)
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