Source: wikibot/harald-fritzsch
= Harald Fritzsch
{wiki=Harald_Fritzsch}
Harald Fritzsch is a theoretical physicist known for his contributions to particle physics, particularly in the field of quantum chromodynamics (QCD) and the development of models describing the strong interaction. He is well-known for his work on the quark model, which classifies the fundamental constituents of matter and has been instrumental in understanding the behavior of particles such as protons and neutrons.