Dynamical σ Particle in QCD(§7. Dynamical Symmetry Breaking and Sigma/Higgs-Boson,Possible Existence of the σ-Meson and Its Implications to Hadron Physics)
Applying our recently developed method, we study a possibility that a sigma particle may be a composite of a fermion-anti-fermion pair starting from pure QCD Lagrangian and derive a mass formula for a sigma particle.
