Recent discussions among particle physicists indicate a lack of interest in models that propose particles, such as quarks and leptons, are composed of lighter subparticles. This is primarily due to the absence of experimental evidence from the Large Hadron Collider (LHC), which has published numerous papers without confirming such models. Previous preon models faced challenges due to binding energies exceeding the rest masses of quarks and leptons. However, new preon models emerging from q-deformed Loop Quantum Gravity (LQG) offer alternative mechanisms that may address these issues, although research in this area has stagnated in recent years.
PREREQUISITESParticle physicists, researchers in theoretical physics, and students interested in advanced particle composition theories and experimental validation.
dimilion said:Why recent particle physicists don’t consider models of particles (quarks, leptons)
built from more light subparticles?
but afaik there has not been much progress (or even research activities) over the last couple of yearsjulian said:More recently, new preon models are coming from q-deformed LQG where "preon configurations" come about by an entirely different mechanism and so does not necessarily suffer from the drawback of the old models.
Yes - afaik.tom.stoer said:but afaik there has not been much progress (or even research activities) over the last couple of years