  We propose a new model for a homogeneous description of hadron-hadron and
hadron-nucleus collisions, the Gluon Exchange Model, fundamentally based on
color octet (gluon) exchange. In proton-proton collisions we provide an exact
description of the final state proton and neutron spectrum including the proton
diffractive peak. In proton-nucleus reactions we find that the projectile
proton diquark cannot survive in more than about half of multiple
proton-nucleon processes and consequently must be very frequently
disintegrated, leading to long transfers of baryon number over rapidity space.
