Little Higgs

A class of models in particle physics designed to solve the Hierarchy Problem - the puzzling gap between the electroweak scale and the Planck scale. Unlike Supersymmetry, which posits a new symmetry between fermions and bosons, the Little Higgs mechanism postulates that the Higgs boson is a composite particle, a "pseudo-Nambu-Goldstone boson" arising from a broken global symmetry at a higher energy scale (around 10 TeV). Its "little" name comes from the fact that the Higgs mass is protected from large quantum corrections by a collection of new partner particles, which cancel out the dominant corrections without requiring a full, complex supersymmetric spectrum. This provides a more minimal and "littler" solution to the hierarchy problem, predicting new, heavy gauge bosons, quarks, and a specific Higgs phenomenology that could be tested at future colliders.