String Percolation and the Glasma

TL;DR

This paper compares string percolation models with Glasma results to understand particle correlations and phenomena in high-energy QCD, suggesting effective strings as a bridge to low-density regimes.

Contribution

It introduces the use of effective strings to extend Glasma phenomenology into the low-density QCD regime, connecting different theoretical approaches.

Findings

Agreement between string percolation and Glasma on particle rapidity densities

Identification of the negative binomial distribution parameter k minimum at low energy/centrality

Effective strings as a tool for low-density QCD modeling

Abstract

We compare string percolation phenomenology to Glasma results on particle rapidity densities, effective string or flux tube intrinsic correlations, the ridge phenomena and long range forward-backward correlations. Effective strings may be a tool to extend the Glasma to the low density QCD regime. A good example is given by the minimum of the negative binomial distribution parameter k expected to occur at low energy/centrality.