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CERN / SCIENCE PHOTO LIBRARY CERN / SCIENCE PHOTO LIBRARY
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Higgs boson discovery announcement, 4th July 2012. Joe Incandela, spokesperson for the CMS (Compact Muon Solenoid) experiment, speaking at a seminar to announce the observation of a new particle consistent with the Higgs boson. Data collected by the CMS and ATLAS (a torodial LHC apparatus) experiments at the LHC (Large Hadron Collider) at CERN (the European particle physics laboratory) have shown the new particle at around 125 giga electron volts (GeV). Further analysis will determine if the particle is the long sought for Higgs boson, a fundamental particle that is thought to give other particles mass. The particle is required by many of the Grand Unified Theories (or GUTs) which hope to explain three of the fundamental forces (electromagnetism and the weak and the strong nuclear forces) in a single unified theory.
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