On the collision of two projectiles on two targets in the BFKL approach

Abstract

High-energy collisions of two nucleons on two nucleons are studied in the BFKL approach in the leading approximation in αsNc. Diagrams with redistribution of colour are considered. It is found that intermediate BKP states consisting of 4 reggeized gluons give a contribution which may be leading in deuteron-deuteron scattering and thus experimentally observable.

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