MELTING HADRONS, BOILING QUAKRS AND GLUONS

Abstract

Resonance spectra (Hagedorn distribution) are critically revised with emphasis on the saturation of hadron states and possible transition to a soup of quarks and gluons. Previous studies in this direction are extended by use of non-linear, complex Regge trajectories whose limited real part supports the idea of saturation of high-mass/spin resonance production.