Cern Large Hadron Collider restarts after 14 months

Posted: November 21, 2009 in Uncategorized

BBC News Online 20 Nov 09

The Large Hadron Collider experiment has re-started after a 14-month hiatus while the machine was being repaired.

Engineers have made two stable proton beams circulate in opposite directions around the machine, which is in a tunnel beneath the French-Swiss border.

During the experiment, scientists will search for signs of the Higgs boson (Bette: so-called “God particle”), a sub-atomic particle that is crucial to our current understanding of physics. Although it is predicted to exist, scientists have never found it.

Dr Gillies said that if everything continued to go well, Cern might try to reach a record-breaking beam energy of 1.2 trillion electron volts this weekend. Only the Tevatron particle accelerator in Chicago, US, has approached this energy, operating at just under one trillion electron volts.

http://bit.ly/8sNwdU

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