# From QCD to heavy ion collisions

Source: [From QCD to heavy ion collisions](<https://www.sota2.com/research/paper/68fa24d22c2a3760193a9518>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-27T02:59:29.914Z

Authors: K. Kajantie

Published: 1999-07-29T10:31:20.000Z

## Abstract

This talk will discuss how heavy ion experiments, when moving from SPS (10 + 10 GeV) to RHIC (100+100 GeV) and to LHC (2750+2750 GeV), will enter a new domain of QCD in which the production of even large pT gluons is so abundant that it is simultaneously perturbative but such that the phase space density of gluons is saturated. The saturation scale is estimated, quantitative numbers for the initial production of gluons at the LHC are given and options for their subsequent evolution are outlined. For parametrically large nuclei and energies, classical field methods will be applicable.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/hep-ph/9907544>)

[PDF](<https://arxiv.org/pdf/hep-ph/9907544.pdf>)