重子激发态奇异性质研究

摘要

Outstanding problems for the classical 3q model. Mass order reverse problem for the lowest excited baryons.The number of predicted states is much less than observed"missing" baryon statesnon-existence/to be observed ? The effective Lagrangian approach andresonance model.Invariant mass,decay angle and energy distributions. Hadron level,Vertex:effective Lagrangian,Resonance : Brefit-Wigner. Total cross sections.Scattering amplitude.