First Results of the LUX Dark Matter Experiment

LUX collaboration (86 authors); de Viveiros, L.; Lindote, A.; Lopes, M.I.; Neves, F.; Silva, C.; Solovov, V.N.

http://hdl.handle.net/10400.26/27106

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Authors

LUX collaboration (86 authors)

Abstract(s)

LUX (Large Underground Xenon) is a dark matter direct detection experiment deployed at the 4850' level of the Sanford Underground Research Facility (SURF) in Lead, SD, operating a 370 kg dual-phase xenon TPC. Results of the first WIMP search run were presented in late 2013, for the analysis of 85.3 live-days with a fiducial volume of 118 kg, taken during the period of April to August 2013. The experiment exhibited a sensitivity to spin-independent WIMP-nucleon elastic scattering with a minimum upper limit on the cross section of 7.6×10−46cm2 at a WIMP mass of 33 GeV/c 2 , becoming the world's leading WIMP search result, in conflict with several previous claimed hints of discovery.