Null result reported from XENON100 experiment on Cold Dark Matter detection attempt.
Xenon100 reports no CDM detection
Parameter space starts groaning as it is squeezed tighter...
Definitely not croquet...
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There's a minor kerfuffle at the moment over the XENON experiment's early data (arxiv paper) which did not detect any dark matter in 11 days of data acquisition. This conflicts with earlier claims by the DAMA experiment and recent maybe-kinda-sorta detections by the CoGeNT and CDMA experiments.
As…
Time magazine just ran an article "Cosmic Fuggedaboudit: Dark Matter May Not Exist At All" - a revisit of the MOND hypothesis.
The story keys off the recent article by Ibata on the Andromeda dwarf galaxies (sub) arXiv pdf, and here is the full ApJ article on arXiv.
Independent of these recent…
So I've been hanging out at the Indirect and Direct Detection of Dark Matter conference this week, and been struck by several things.
It is a good meeting, enthusiastic crowd, definite excitement in the air.
It would have read much better if the title had been "Direct and Indirect Detection of…
hangin' out at KITP sneaking into the LHC workshop talks,
sort of liveblog of the constraints on supersymmetry from preliminary LHC results.
today's seminar is Reece: on Assessing SUSY After 1 fb-1 (blackboard talk, but audio/video will be up on the website soon) on constraints on supersymmetry…
One thing seems certain, though: this is tough news for LHC...
Finally! Personally I'm pleased with a null detection because I'm currently in the "GR has issues" camp.
Tough news for LHC? Why? main experiments there aren't focused on this area. Plus this actual extends some limits from LHC. I don't see a lot of issues.