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Thursday, November 4, 2010

LHC To Shift Gears This Month And Create Mini Big Bangs | Popular Science

LHC To Shift Gears This Month And Create Mini Big Bangs | Popular Science: "Smashing protons at high energies is fun and all, but researchers at the Large Hadron Collider are taking a vacation from their day-to-day proton smashing, and taking a trip back to the very origins of the universe. Starting this month and continuing for four weeks, the LHC will accelerate and then collide lead ions – that is, entire atomic nuclei – to create a series of miniature Big Bangs that will let researchers take a look at the quark-gluon plasma that existed just a fraction of a second after the universe was born.
The proton collisions conducted thus far have generated mountains of data for researchers by producing new and different particles, some of which may have never been seen by scientists before (like the elusive and theoretical Higgs boson). But the lead ion collisions will be different; because lead ions are composed of complete atomic nuclei – not just a single subatomic particle – their masses are far larger. Plug more mass into Einstein’s most famous equation and the energy produced increases as well."

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