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We study baryons in multicolour 1+1D QCD via Rajeev's gauge-invariantreformulation as a non-linear classical theory of a bilocal meson fieldconstrained to lie on a Grassmannian. It is known to reproduce 't Hooft's mesonspectrum via small oscillations around the vacuum, while baryons arise astopological solitons. The lightest baryon has zero mass per colour in thechiral limit; we find its form factor. It moves at the speed of light through afamily of massless states. To model excitations of this baryon, we linearizeequations for motion in the tangent space to the Grassmannian, parameterized bya bilocal field U. A redundancy in U is removed and an approximation is made inlieu of a consistency condition on U. The baryon spectrum is given by aneigenvalue problem for a hermitian singular integral operator on such tangentvectors. Excited baryons are like bound states of the lightest one with ameson. Using a rank-1 ansatz for U in a variational formulation, we estimatethe mass and form factor of the first excitation.

On lightest baryon and its excitations in large-N 1+1-dimensional QCD