Saturday, March 17, 2012

ALPHA Closes in on Antimatter

ALPHA Closes in on Antimatter:

What matter and antimatter might look like annihilating one another. Credit: NASA/CXC/M. Weiss
We live in a universe made of matter. But at the moment of the Big Bang, matter and antimatter existed in equal amounts. That antimatter has all but disappeared suggests that nature, for some reason, has a strong preference for matter. Physicists want to know why matter has replaced its antimatter twin, and this week the ALPHA collaboration at CERN got a step closer to unraveling the mystery. (...)


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