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Abstract: Even within the framework of the leading logarithmic approximation theeigenvalues of the BKP kernel for states of more than three reggeized gluonsare unknown in general, contrary to the planar limit case where the problembecomes integrable. We consider a 4-gluon kernel for a finite number of colorsand define some simple toy models for the configuration space dynamics, whichare directly solvable with group theoretical methods. Then we study thedependence of the spectrum of these models with respect to the number of colorsand make comparisons with the large limit case.



Autor: P. L. Iafelice, G. P. Vacca

Fuente: https://arxiv.org/







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