Energy Dependent Growth of Nucleon and Inclusive Charged Hadron Distributions

TL;DR

This paper investigates energy-dependent nucleon growth and its effects on charged hadron distributions in high-energy proton-proton and proton-lead collisions, using the Color Glass Condensate and Glasma models, aligning well with LHC data.

Contribution

It introduces an energy-dependent nucleon density broadening in the CGC formalism and applies the Glasma flux tube model to predict particle distributions at LHC energies.

Findings

Good agreement with ALICE and CMS data at 0.9, 2.36, 7 TeV

Predictions for p+p and p+Pb collisions at LHC energies

Energy-dependent nucleon growth impacts particle distribution modeling

Abstract

In the Color Glass Condensate formalism, charged hadron p_{T} distributions in p+p collisions are studied by considering an energy-dependent broadening of nucleon's density distribution. Then, in the Glasma flux tube picture, the n-particle multiplicity distributions at different pseudo-rapidity ranges are investigated. Both of the theoretical results show good agreement with the recent experimental data from ALICE and CMS at \sqrt{s}=0.9, 2.36, 7 TeV. The predictive results for p_{T} and multiplicity distributions in p+p and p+Pb collisions at the Large Hadron Collider are also given in this paper.