Particle multiplicities at LHC and deviations from limiting fragmentation

TL;DR

This paper predicts charged particle densities at LHC using two production mechanisms, examines the limiting fragmentation hypothesis and its potential violations, and compares different partonic models.

Contribution

It introduces a combined approach with consistent parton distributions to predict particle multiplicities and analyzes the limiting fragmentation hypothesis at LHC energies.

Findings

Predicted pseudorapidity densities at LHC energies.

Identified potential violations of the limiting fragmentation hypothesis.

Compared different partonic models for particle production.

Abstract

The pseudorapidity density of charged particles produced at LHC collisions are predicted by using two complementary production mechanisms with a set of consistent integrated and unintegrated parton distributions. We discuss the limiting fragmentation hypothesis and its possible violation, and we compare our model with other partonic models.