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SLAC-PUB-8734
Baryon Stopping in High Energy Collisions in the DPMJET-II Model

Abstract

The significant stopping of the participant nucleons in hadron-nucleus and nucleus-nucleus collisions is investigated with the Monte Carlo event generator DPMJET-III by introducing new diquark breaking diagrams. It is argued that a similar mechanism might also lead to baryon stopping in proton-proton collisions at collider and cosmic ray energies. Model results are compared to data on net-proton rapidity distributions in central nuclear collisions. In addition, extrapolations of spectrum-weighted moments and energy fractions to cosmic ray energies are given.

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