British physicist Peter Higgs (R) congratulates ATLAS experiment spokesperson Fabiola Gianotti on July 4, 2012 after her results presentation during a seminar on the latest update in the 50-year bid to explain a riddle of fundamental matter in the search for a particle called the Higgs boson at the European Organization for Nuclear Research (CERN) in Meyrin, near Geneva.  Physicists on July 4 said they had found a new sub-atomic particle consistent with the Higgs boson which is believed to confer mass.                     AFP PHOTO / POOL / DENIS BALIBOUSE        (Photo credit should read DENIS BALIBOUSE/AFP/GettyImages)