First LHC collisions at 7 TeV

30 March 2010

(Image: Martin Aleksa, Lyndon Evans, Fabiola Gianotti and Peter Jenni toast running at 7 TeV)

After initial lower energy collision physics from November 2009 onwards, ATLAS records collisions at 7 TeV centre-of-mass energy for the first time.

Particle physicists around the world anticipate a rich harvest of new physics as the LHC begins its first long run at an energy three and a half times higher than previously achieved at a particle accelerator.

“It’s a great day to be a particle physicist,” says CERN Director-General Rolf Heuer. “A lot of people have waited a long time for this moment, but their patience and dedication is starting to pay dividends.”

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