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Direct Searches for Dark Matter with XENON
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Results from the XENON100 Experiment (July 18 2012)
The XENON100 experiment, located in the Gran Sasso mountain in central Italy , recently released results from the last run (2011-2012). These data were acquired over 224.6 days within a fiducial volume containing 34 kg of liquid xenon and with an ultra low electromagnetic background. After unblinding the region of interest, two events were observed, consistent with the total background expectation of (1.0 +-0.2) events. A Profile Likelihood analysis of these data leads to the best upper limit on the spin independent elastic WIMP-nucleon scattering cross section, with a minimum of 2 x 10-45 cm2 at 55 GeV/c2 and 90% confidence level (arXiv paper).
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Latest results from 225 live days of XENON100 data : Upper Limit (90% C.L.)
is 2 x 10-45 cm2 for 55 GeV/c2 WIMP
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Latest results from 100 live days of XENON100 data (
press release, arXiv,
PRL )
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New measurements of the scintillation efficiency of low-energy nuclear recoils in liquid xenon
(arXiv and PRL )
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First Dark Matter Results from the XENON100 Experiment
( PRL , arXiv:1005.0380)
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Inside copper shield of the XENON100 detector
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R. Santorelli (Zurich), G. Plante (Columbia), S. Fattori (formerly LNGS, now Mainz), and E. Tziaferi (Zurich) around the TPC
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Mesh of the XENON100 TPC
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Bottom PMT array
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Top PMT array
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View of the TPC of XENON 100
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XENON100 DAQ system
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