Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data

Abstract

We present constraints on weakly interacting massive particles (WIMP)-nucleus scattering from the 2013 data of the Large Underground Xenon dark matter experiment, including 1.4 × 10 4 kg day of search exposure. This new analysis incorporates several advances: single-photon calibration at the scintillation wavelength, improved event-reconstruction algorithms, a revised background model including events originating on the detector walls in an enlarged fiducial volume, and new calibrations from decays of an injected tritium β source and from kinematically constrained nuclear recoils down to 1.1 keV. Sensitivity, especially to low-mass WIMPs, is enhanced compared to our previous results which modeled the signal only above a 3 keV minimum energy. Under standard dark matter halo assumptions and in the mass range above 4 GeV c −2 , these new results give the arXiv:1512.03506v3 [astro-ph.CO]

Multicomponent Dark Matter from gauge symmetry

“…The current limits from the LUX experiment and the projected sensitivity of XENON1T are shown in figure 6 by green and orange contours, respectively, assuming the exposure time considered in [41]. As discussed in the previous subsection, the χ component typically dominates the relic DM density which renders the current and future Direct Detection constraints weak to irrelevant.…”

“…Indeed, by crossing symmetry arguments, there is a relation between the DM pair annihilation cross-section at freeze-out, responsible for the relic density, and the processes potentially responsible for detection signals, such as scattering on nuclei, probed by Direct Detection experiments, or production at colliders. Null results of the latter then rule out large portions of the parameter space favoured by the thermal WIMP paradigm [15][16][17]. If the s-wave DM annihilation cross section remains substantial at present times, the model can also be probed by Indirect Detection experiments.…”

“…In this subsection, we discuss the limits from the LUX experiment [41], as well as prospects for direct detection in XENON1T [32]. The interactions of the pseudoscalar and vector DM components with nuclei are vastly different, thus it is convenient to discuss them separately.…”

Investigating light NMSSM pseudoscalar states with boosted ditau tagging

“…We next focus on the spin-independent dark-matter-proton scattering cross section, 15) and compare the NMSSM predictions obtained with MicrOmegas to LUX data [52]. The results are presented in the right panel of figure 2, in which we demonstrate that many models in all three regions can survive all considered dark matter constraints.…”

Study of dark matter physics in non-universal gaugino mass scenario

“…are given by the XENON100 [61][62][63], LUX [64,65], PANDAX-II [66,67] and PICO [68,69]. The XENON1T [70] and LZ [71] will cover wider range in near future.…”