Energy density of the glasma

2006/06/30 by T. Lappi · 9 citations
Mathematics · Physics and Astronomy · #Collision #Color-glass condensate #Computational physics #Computer science #Cutoff #Divergence (linguistics) #Energy (signal processing) #Energy density #Gluon #Heavy ion #High-Energy Particle Collisions Research #Infrared #Ion #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Saturation (graph theory) #Statistical physics #Theoretical physics #Ultraviolet #hep-ph #nucl-th

paper · pdf · doi:10.1016/j.physletb.2006.10.017

published as Phys.Lett.B643:11-16,2006 · 6 pages, 5 figures, RevTeX, V2: minor clarifications, to be published in PLB

arxiv created 2006/10/03 · openalex publication_date 2006/10/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The initial energy density produced in an ultrarelativistic heavy ion collision can, in the color glass condensate framework, be factorized into a product of the integrated gluon distributions of the nuclei. Although this energy density is well defined without any infrared cutoff besides the saturation scale, it is apparently logarithmically ultraviolet divergent. We argue that this divergence is not physically meaningful and does not affect the behavior of the system at any finite proper time.

Citations

• Evolution at small x_bj: The Color Glass Condensate
• Non-Abelian Weizsäcker-Williams field and a two-dimensional effective color charge density for a very large nucleus
• Quark production in high-energy proton-nucleus collisions
• Thoughts on non-perturbative thermalization and jet quenching in heavy ion collisions
• Rapidity distribution of gluons in the classical field model for heavy ion collisions
• Yang-Mills radiation in ultrarelativistic nuclear collisions
• Collective Non-Abelian Instabilities in a Melting Color Glass Condensate
• Saturation effects in deep inelastic scattering at lowQ2and its implications on diffraction
• Cronin effect and high-pTsuppression inpAcollisions

Cited by

• Linearly polarized gluons and axial charge fluctuations in the glasma
• Universal attractor in a highly occupied non-Abelian plasma
• The evolving Glasma
• Matching of nonthermal initial conditions and hydrodynamic stage in ultrarelativistic heavy-ion collisions
• High energy factorization in nucleus-nucleus collisions. II. Multigluon correlations
• Chiral magnetic effect and an experimental bound on the late time magnetic field strength
• Wilson line correlator in the MV model: relating the glasma to deep inelastic scattering
• Topological charge fluctuations in the Glasma
• Implications of \cal C\cal P -violating transitions in hot quark matter on heavy-ion collisions