High speed proton collisions generate a range of even smaller particles that scientists have been sifting through in search of a signal in the data suggesting the existence of the Higgs boson.
Before July 4, 2012, the Higgs boson mass could only be in the 122 GeV to 130 GeV mass range (units where the proton mass is about 1 GeV, and the W and Z vector bosons are 80 GeV and 90 GeV, respectively).
However, the mid-range sedan's platform (underbody structure and chassis) is entirely Proton, a major step for the carmaker, whose other models are based on Mitsubishi or Citroen platforms.