First Science Results from the Large Underground Xenon (LUX) dark matter experiment

Event Date: 

Wednesday, October 30, 2013 - 2:00pm

Event Location: 

  • 1003 Kohn Hall

Event Contact: 


Harry Nelson, Professor, Dept. of Physics, UCSB

The LUX experiment is a dual-phase time-projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota.  LUX detects and identifies xenon atoms that recoil with as little as 3 keV of energy after scattering from a WIMP (Weakly

Interacting Massive Particle).   Data taken for the commissioning of the experiment during the summer of 2013 have proven to be of high quality.   I'll report on the analysis of data taken during 85.3 live-days using  the LUX xenon fiducial volume of 118 kg.  For WIMP masses above 6 GeV/c^2, the sensitivity achieved exceeds that of competing experiments.