Yang-Mills radiation in ultrarelativistic nuclear collisions

1997/04/16 by Miklos Gyulassy, M. Gyulassy, Larry McLerran · 10 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevc.56.2219

published as Phys.Rev.C56:2219-2228,1997 · 21 pages (Latex) including 2 postscript figures via psfig

arxiv created 1997/04/16 · openalex publication_date 1997/10/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The classical Yang-Mills radiation computed in the McLerran-Venugopalan model is shown to be equivalent to the gluon bremsstrahlung distribution to lowest (g⁶) order in pQCD. The classical distribution is also shown to match smoothly onto the conventional pQCD minijet distribution at a scale k_\ensuremath⊥²\ensuremath∼\ensuremathχ, characteristic of the initial parton transverse density of the system. The atomic number and energy dependence of \ensuremathχ is computed from available structure function information. The limits of applicability of the classical Yang-Mills description of nuclear collisions at RHIC and LHC energies are discussed.

Citations

• Non-Abelian Weizsäcker-Williams field and a two-dimensional effective color charge density for a very large nucleus
• Asymptotic freedom in parton language

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