Baryon number in proton-proton and proton-nucleus high energy collisions

Abstract New analyses of baryon spectra in proton-proton and proton-carbon collisions at $$\sqrt{s}_\mathrm {_{NN}}=17.3$$ s NN = 17.3 GeV, made the framework two phenomenological models are presented. The first model question is classic Dual Parton Model by Capella Tran Thanh Van, second Gluon Exchange very recently proposed authors. For both studies, usage modern experimental data from CERN SPS eliminates several most important limitations inherent to earlier studies this type. In standard mechanism stopping with preservation diquark, Van fails describe distribution non-strange baryons projectile proton more than one nucleon carbon target obtained data, upper limit for contribution can be established. cases, conclusion that diquark must often disintegrated. This opens new diagrams not available which lead transport number over long distances rapidity. present limitations, possibility improvement approaches discussed. implications our findings measurements addressed, particular using antiproton beams.