👉 The Coleman Light Particles, also known as Coleman's light particles or Coleman-Landau light particles, are hypothetical subatomic entities proposed by physicist Robert A. Coleman in the 1990s. These particles are considered to be extremely light, with masses much smaller than those of known particles like electrons or quarks, potentially even lighter than the Higgs boson. Coleman suggested that these particles could explain certain anomalies observed in experiments related to electroweak interactions and the hierarchy problem in particle physics. Unlike conventional particles, which interact via fundamental forces, Coleman-Light Particles are thought to mediate a new force, possibly a "dark force," that operates at very high energies or short distances. While not yet experimentally confirmed, the concept of these particles has sparked interest in exploring beyond the Standard Model of particle physics and could provide insights into the unification of fundamental forces.