Extended Quark Potential Model from Random Phase Approximation


The quark potential model is extended to include the sea quark excitation using the random phase approximation (RPA). The effective quark interaction preserves the important Quantum Chromodynamics (QCD) properties -- chiral symmetry and confinement simultaneously. A primary qualitive analysis shows that the π\pi meson as a well-known typical Goldstone boson and the other mesons made up of valence qqˉq\bar{q} quark pair such as the ρ\rho meson can also be described in this extended quark potential model

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