XENON Dark Matter Project



News

2010/07/29
"Liquid xenon detectors for particle physics and astrophysics" was published in Review of Modern Physics.

2010/07/08
The Discovery Interview: The Dark Hunter

2010/05/06
Columbia E-NEWS: Highly Sensitive Dark Matter Experiment Disproves Earlier Findings

2010/05/04
nature.com: Dark matter stays dark

2010/05/03
The New York Times: Particle Detector Shows Promise, if Nothing Else

2010/05/03
"First Dark Matter Results from the XENON100 Experiment" is available in arXiv.

2010/01/16
"Design and Performance of the XENON10 Dark Matter Experiment" is available in arXiv.

2009/12/09
"Constraints on inelastic dark matter from XENON10" was published in Phys. Rev. D.

2009/08/04
WIRED: Let there be light! The search for dark matter.

2009/07/27
Columbia E-NEWS: Columbia Researchers Lead Race to Find Dark Matter.

2009/04/22
"New Measurement of the Relative Scintillation Efficiency of Xenon Nuclear Recoils Below 10 keV" was published in Phys. Rev. C.

2009/03/18
"Status and Sensitivity Projections for the XENON100 Dark Matter Experiment" was accepted in Proceedings of Science (IDM2008) 018.

2008/09/05
"Limits on spin-dependent WIMP-nucleon cross-sections from the XENON10 experiment" was published in Phys. Rev. Lett.

2008/07/23
After a long waiting time, the Kr distillation column was finally delivered to LNGS. Kr-85 is one intrinsic radioactive source in Xe. The XENON100 experiment's sensitivity goal requires a Kr/Xe contamination level lower than 50 ppt. The current Kr/Xe contamination level in XENON100 is about 5 ppb. Cryogenic distillation through the new column, which will take about two weeks for the 170 kg Xe in the detector, will reduce the Kr/Xe level by three orders of magnitude, making the Kr-85 contribution to the XENON100 total background negligible.

2008/04/20
XENON100 Poster was presented at the APS spring meeting. It gives a good overview about XENON Program and the basics of XENON100 experiment.

2008/02/22
XENON100 detector construction completed. See Elena Aprile's presentation at the UCLA Dark Matter 2008 conference.

2008/01/17
"First Results from the XENON10 Dark Matter Experiment at the Gran Sasso National Laboratory" was published in Phys. Rev. Lett.

2007/12/15
Columbia University Ground Breaking Work: Elena Aprile (Physics/Applied Physics), This new device can detect dark matter, the never-found state of matter that current theory says should make up 90 percent of the universe.

2007/11/14
Discover: The 6 Most Important Experiments in the World

2007/08/12
USA Today: Researchers use high-tech machines to detect mysterious dark matter

2007/07/18
Nature: Unseen Universe: Welcome to the dark side

2007/04/17
Nature: Dark matter looks to be particularly wimpy

2007/04/14
XENON10 results from a 3 month WIMP search run at the Gran Sasso National Laboratory announced at the APS April Meeting. The solid red curve is the lastest XENON10 result.