Large-NQCD Baryon Dynamics—Exact Results from Its Relation to the Static Strong-Coupling Theory

Starting from the large-$N$ power counting which suggests that the baryons are QCD solitons, the authors derive an exact large-$N$ equation identical to the so-called bootstrap condition of static strong-coupling theory. This equation determines the group structure of the baryon multiplets at $N\to \infty$. One solution is the standard nonrelativistic quark model.