Proton structure in high-energy high-multiplicity p-p collisions

TL;DR

This paper models proton structure in high-energy proton-proton collisions using a few-body approach within the Monte Carlo Glauber framework, linking initial anisotropies to observed ridge correlations in final states.

Contribution

It introduces a novel few-body proton structure model derived from QCD principles to explain high-multiplicity collision phenomena.

Findings

Proton structure affects initial anisotropy coefficients.

Proton configurations can account for ridge effect magnitude.

Distinct structures show different multiplicity dependencies.

Abstract

A few-body proton image, expected to be derivable from QCD in the renormalization group procedure for effective particles, is used within the Monte Carlo Glauber model to calculate the anisotropy coefficients in the initial collision-state of matter in high-energy high-multiplicity proton-proton interaction events. We estimate the ridge-like correlations in the final hadronic state by assuming their proportionality to the initial collision-state anisotropy. In our estimates, some distinct few-body proton structures appear capable of accounting for the magnitude of p-p ridge effect, with potentially discernible differences in dependence on multiplicity.