2000 character limit reached
Radial and angular-momentum Regge trajectories: a systematic approach (1208.4477v1)
Published 22 Aug 2012 in hep-ph, hep-lat, and nucl-th
Abstract: We present the analysis of Ref.[1] of the radial (n) and angular-momentum (J) Regge trajectories for all light-quark meson states listed in the Particle Data Tables. The parameters of the trajectories are obtained with linear regression, with weight of each resonance inversely proportional to its half-width squared, (\Gamma/2)2. The joint analysis in the (n,J,M2) Regge plane indicates, at the 4.5 standard deviation level, that the slopes in n are larger from the slopes in J. Thus no strict universality of slopes occurs in the light non-strange meson sector. We also extend our analysis to the kaon sector.