(L ot R) British physicist Peter Higgs, European Organization for Nuclear Research (CERN) Director General Rolf-Dieter Heuer, CMS experiment spokesperson Joe Incandela, ATLAS experiment spokesperson Fabiola Gianotti, and Former CERN Director-General Christopher Llewelyn-Smith pose at a press on July 4, 2012 at CERN offices in Meyrin near Geneva. After a quest spanning nearly half a century, physicists said on July 4 they had found a new sub-atomic particle consistent with the Higgs boson which is believed to confer mass. Rousing cheers and a standing ovation broke out at the CERN after scientists presented data in their long search for the mysterious particle. AFP PHOTO / FABRICE COFFRINI FABRICE COFFRINI/AFP/GettyImages