All is not that rosy, however. The Standard Model gives no explanation of why the masses of the Higgs, the W, and Z have the scales that they do. Indeed, other arguments suggest that one needs new physics to ensure that this scale of masses is not driven up to much higher energies due to quantum mechanical effects that can be calculated. One of the most exciting ways in which this behavior might be kept in check involves a new possible symmetry in nature, called Supersymmetry. If supersymmetry is manifested in the real world, the number of elementary particles would double, and it turns out that because of this one would need not one Higgs particle but two particles to do the job of giving masses to the other particles in nature. Thus, many elementary particle physicists expected to find not one Higgs particle at CERN, but two, wouldn't you say?
(_Felix's school of dance and occult sciences,
Mon 23 Jan 2012, 17:42,
archived)