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View Full Version : Bubble Experiment Fails to Find Dark Matter



Fraser
2008-Feb-20, 12:10 AM
Astronomers have no idea what dark matter is, but they have a few guesses. Since they can't see the stuff directly, they're trying to chip away at what it can't be, peeling away theory after theory. Eventually, there should be a few theories that have withstood the most experiments, and best model what astronomers see [...]

More... (http://www.universetoday.com/2008/02/19/bubble-experiment-fails-to-find-dark-matter/)

trinitree88
2008-Feb-20, 03:44 PM
Astronomers have no idea what dark matter is, but they have a few guesses. Since they can't see the stuff directly, they're trying to chip away at what it can't be, peeling away theory after theory. Eventually, there should be a few theories that have withstood the most experiments, and best model what astronomers see [...]

More... (http://www.universetoday.com/2008/02/19/bubble-experiment-fails-to-find-dark-matter/)

Fraser. An experiment that should have seen hundreds of dark matter interactions found none. Fermilab, particle physicists, peer-reviewed, journal-published. Thank you. pete

01101001
2008-Feb-20, 04:25 PM
Fermilab, particle physicists, peer-reviewed, journal-published.

And, then, as ever with science, comes the next step: Fermilab news (http://www.fnal.gov/pub/presspass/press_releases/COUPPdarkmattersearch.html):


COUPP aims to increase sensitivity by increasing the amount of liquid from one liter to 30 liters in the bubble chamber. Physicists expect soon to start testing the larger chamber at Fermilab. If the larger chamber meets expectations, the experiment could move to a deeper tunnel to reduce the background from cosmic radiation even further.

"No one knows for sure if dark matter is made of WIMPs," said Andrew Sonnenschein, COUPP collaborator. "If it is, we'll have a chance with the new chamber to find it. That's all we can ask for."

Jerry
2008-Feb-20, 07:40 PM
"No one knows for sure if dark matter is made of WIMPs," said Andrew Sonnenschein, COUPP collaborator. "If it is, we'll have a chance with the new chamber to find it. That's all we can ask for."

We can ask for a new theory for gravity.