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

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

2007-05-21

arxiv.org/abs/0705.3055v2

Phys.Lett.B655:223-227,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 1 figure, 2 tables, published version

Scientific paper

10.1016/j.physletb.2007.08.057

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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