Particle Production In Hadron-nucleus Collisions Research Articles

Particle production in hadron-nucleus collisions at 100 GeV from a parton-string model

We calculate the inclusive momentum distribution of particles produced in a hadron-nucleus (hA) collision. The exchange of colour between the projectile and target nucleons leads to the formation of colour strings which are assumed to fragment like strings formed in deep inelastic lepton-nucleon scattering. Making a few basic hypotheses we consistently and parameterfree describe the projectile fragmentation region in collisions of the typehA→h′X withh=p, π+ andh′=p, π+, π− at 100 GeV incident energy.

Particle production in hadron-nucleus collisions in a multi-chain fragmentation model

We investigate a multi-chain fragmentation model for particle production in hadron-hardon and hadron-nucleus collisions for all kinds of incident hadrons. The model is implemented using a realistic Monte Carlo model for the fragmentation of quarkantiquark, quark-diquark, and diquark-antidiquark chains into mesons, baryons, and their resonances. We assume that these jets have universal properties which are the same in electron-positron, lepton-hadron, and hadron-hadron collisions. Energy-momentum and all additive quantum numbers are exactly conserved. The model is compared with exclusive as well as inclusive particle-production cross-sections. It is well suited to the study of complete exclusive events and the flavour composition of secondary multiparticle systems.

Projectile fragmentation in hadron-nucleus collisions at high energies

Particle production in hadron-nucleus collisions at high energies is discussed in the projectile fragmentation region. The predictions of the constituent quark model are analyzed. The contribution of diffractive interactions is explicitly taken into account. Comparison with the recent Fermilab measurements shows good agreement with the quark model and strong effects of diffractive collisions in some of the analyzed reactions.

Cluster model of cumulative particle production in hadron-nucleus collisions

The cumulative π-meson origin in nucleon-nucleus collisions is explained on the basis of a cluster model, and their energy spectra are described.