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Rapidity distribution of gluons in the classical field model for heavy ion collisions

2004/09/28 by T. Lappi
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.70.054905

published as Phys.Rev. C70 (2004) 054905 · REVTeX 4, 6 pages, 4 figures

arxiv created 2004/09/28 · openalex publication_date 2004/11/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The rapidity distribution of gluons produced in heavy ion collisions is studied by a numerical computation in (2+1)-dimensional classical Yang-Mills theory. By assuming that the classical source strength g2\ensuremathμ depends on rapidity as g4\ensuremathμ2\ensuremath∼e^\ifmmode±\else\textpm\fi\ensuremathλy and studying collisions of two nuclei with different g2\ensuremathμ, we find that the rapidity distribution of produced gluons at central rapidities is very broad. The transverse energy is seen to decrease even more slowly as a function of y than the multiplicity. We discuss these results and the range in y and √(s) where they are applicable in the light of experimental results and other theoretical calculations.

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