Hadronic Regge Trajectories: Problems and Approaches

Details Hadronic Regge Trajectories: Problems and Approaches Hadronic Regge Trajectories: Problems and Approaches

1999-05-26

arxiv.org/abs/hep-ph/9905499v1

Phys.Rev. D63 (2001) 054023

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 9 figures, LaTeX

Scientific paper

10.1103/PhysRevD.63.054023

We scrutinized hadronic Regge trajectories in a framework of two different models --- string and potential. Our results are compared with broad spectrum of existing theoretical quark models and all experimental data from PDG98. It was recognized that Regge trajectories for mesons and baryons are not straight and parallel lines in general in the current resonance region both experimentally and theoretically, but very often have appreciable curvature, which is flavor-dependent. For a set of baryon Regge trajectories this fact is well described in the considered potential model. The standard string models predict linear trajectories at high angular momenta J with some form of nonlinearity at low J.

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