Large Hadron Collider starts up again after two-year upgrade

"After two years of intense maintenance and several months of preparation for restart, the Large Hadron Collider, the most powerful particle accelerator in the world, is back in operation," the European Organisation for Nuclear Research (CERN) said. In 2012, the Large Hadron Collider (LHC) was used to prove the existence of Higgs Boson, the particle that confers mass, earning the 2013 Nobel physics prize for two of the scientists who, back in 1964, had theorised the existence of the so-called "God particle". The upgrade -- which saw the LHC shut down in February 2013 -- was intended to nearly double the collider's maximum collision capacity. During the next phase of the LHC programme, researchers will probe a conceptual frontier called new physics, including antimatter and dark matter.

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