Midrapidity Production of Secondaries in pp Collisions at RHIC and LHC Energies in the Quark-Gluon String Model

TL;DR

This paper uses the Quark-Gluon String Model to analyze baryon and secondary particle production at midrapidity in pp collisions at RHIC and LHC energies, showing good agreement with experimental data and providing predictions for future experiments.

Contribution

It introduces a detailed treatment of baryon number transfer via string junction propagation and applies it to high-energy pp collisions, offering new insights and predictions.

Findings

Numerical results align with experimental data on secondary yields.

A universal strangeness suppression factor of ~0.25 fits observed ratios.

Predictions for LHC energies are provided.

Abstract

We consider the phenomenological implications of the assumption that baryons are systems of three quarks connected through gluon string junction. The transfer of baryon number in rapidity space due to the string junction propagation is considered in detail. At high energies this process leads to a significant effect on the net baryon production in hN collisions at mid-rapidities. The numerical results for midrapidity inclusive densities of different secondaries in the framework of the Quark-Gluon String Model are in reasonable agreement with the experimental data. One universal value lambda ~ 0.25 for the strangeness suppression parameter correctly describes the yield ratios of Lambda/p, Xi/Lambda, and Omega/Xi. The predictions for pp collisions at LHC energies are also presented.