Baryon wave functions in QCD and integrable models

Abstract

A new theoretical framework is proposed for the description of baryon light-cone distribution amplitudes, based on the observation that their scale dependence to leading logarithmic accuracy is described by a completely integrable model. The physical interpretation is that one is able to find a new quantum number that distinguishes partonic components in the nucleon with different scale dependence.

Comments: 9 pages, 4 figures; invited contribution to the X International Light-Cone Meeting on Non-Perturbative QCD and Hadron Phenomenology, Heidelberg, 12-17 June 2000