Matt Strassler 12/5/11 The reason it is hard to find a lightweight Standard Model Higgs particle (lightweight: with mass-energy [E=mc2] between 115 and 130 GeV; Standard Model Higgs: the simplest possible form of the Higgs particle) is (1) that (like most particles) it decays long before we have a chance to observe it directly, and … Continue reading A Lightweight Standard Model Higgs Particle