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arXiv · 0705.3055

Baryon Regge Trajectories in the Light of the $1/N_c$ Expansion

J. L. Goity·N. Matagne
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Abstract

We analyze Regge trajectories in terms of the $1/N_c$ expansion of QCD. Neglecting spin-orbit contributions to the large $N_c$ baryon mass operator, we consider the evolution of the spin-flavor singlet component of the masses with respect to the angular momentum. We find two distinct and remarkably linear Regge trajectories for symmetric and for mixed symmetric spin-flavor multiplets.

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J. L. Goity, N. Matagne. 2007-10-30. Baryon Regge Trajectories in the Light of the $1/N_c$ Expansion. https://doi.org/10.1016/j.physletb.2007.08.057

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