QCD Structure of Hadrons Confinement- Hadrons must be color singlet Existing Hadrons: meson-quark and anti-quark pair Baryon -three quark system q Color ConfigurationQCD Structure of Hadrons Confinement – Hadrons must be color singlet ! Existing Hadrons: meson – quark and anti-quark pair Baryon – three quark system q q q q q Color Configuration