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Quark-Antiquark Regge Trajectories in Large Nc QCD

Michael McGuigan, Charles B. Thorn

hep-pharXiv:hep-ph/9205211

Abstract

We apply methods developed by Lovelace, Lipatov and Kirschner to evaluate the leading Regge trajectories α(t) with the quantum numbers of nonexotic quark-antiquark mesons at Nc = infinity and in the limit of t going to minus infinity. In this region renormalization group improved perturbation theory should be valid. We discuss the compatibility of nonlinear trajectories with narrow resonance approximations.

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