Hadron resonances, large Nc, and the half-width rule

Abstract

We suggest using the half-width rule to make an estimate of the 1/Nc errors in hadronic models containing resonances. We show simple consequences ranging from the analysis of meson Regge trajectories, the hadron resonance gas at finite temperature and generalized hadronic form factors.

Comments: 6 pages, 4 figures. Presented by ERA at Light Cone 2012, Cracow, 8-13 July 2012