Large N _c equivalence and baryons

In the large N _c limit, gauge theories with different gauge groups and matter content sometimes turn out to be "large N _c equivalent," in the sense of having a set of coincident correlation functions. Large N _c equivalence has mainly been explored in the glueball and meson sectors. However, a recent proposal to dodge the fermion sign problem of QCD with a quark number chemical potential using large N _c equivalence motivates investigating the applicability of large N _c equivalence to correlation functions involving baryon operators. Here we present evidence that large N _c equivalence extends to the baryon sector, under the same type of symmetry realization assumptions as in the meson sector, by adapting the classic Witten analysis of large N _c baryons.