My take: No conclusive discovery of dark matter, but we couldn’t realistically expect that anyway. However, there are two events that, while not definitively dark matter, can’t be ruled out either. The announcement wasn’t earth-shattering, but it was nonetheless exciting. It was cool for me to be in on what may be the early stages of a big and important discovery, both by watching the announcement live and by being at the institution that hosts the experiment.
My semester is over, so I’m at home, sitting on my couch, watching the CDMS talk streaming live. Here’s some of my thoughts as I watch: Continue reading ‘Liveblogging CDMS Talk from My Couch’
UPDATE: Direct link to the streaming video of the announcement. Live blogging of the event at SLAC via JoAnne at Cosmic Variance.
You may have heard the wild rumors circulating around the physics blogosphere about the CDMS (Cryogenic Dark Matter Search) experiment taking place deep underground in an abandoned mine in northern Minnesota. The rumor (which apparently started with this post at Resonaances) took some unusual behavior by the CDMS team, combined with the rumor of an article being published in Nature, led many to speculate that they were planning to announce detection of dark matter.
It turns out that these rumors were overly dramatic — apparently there is no Nature article, and Priscilla Cushman from the University of Minnesota has downplayed the rumors, calling them “lots of smoke and not much fire.”
However, they are still making dual announcements today at 5 o’clock EST, one at SLAC and one at Fermilab, and one will be webcast here. So they have some sort of semi-major announcement, but that doesn’t necessarily mean a claim of detection. It could be a significant improvement on their experimental limits, or maybe detections at a level that doesn’t allow them to make any big claims. For more thoughts on what might be announced, and what it might mean, see this post.
And now for a little speculation of my own:
Continue reading ‘Rumors of the Dark Side’