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Title: Initial Energy Density of Gluons Produced in Very-High-Energy Nuclear Collisions

Abstract

In very-high-energy nuclear collisions, the initial energy of produced gluons per unit area per unit rapidity, (dE/L{sup 2})/d{eta} , is equal to f(g{sup 2}{mu}L) (g{sup 2}{mu}){sup 3}/g{sup 2} , where {mu}{sup 2} is proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, a nonperturbative computation of f(g{sup 2}{mu}L) shows that it varies rapidly for small g{sup 2}{mu}L but varies only by {approx}25% , from 0.208{+-}0.004 to 0.257{+-}0.005 , for a wide range 35.36 -296.98 in g{sup 2}{mu}L . This includes the range relevant for collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). Extrapolating to SU(3), we estimate dE/d{eta} for Au-Au collisions in the central region at RHIC and LHC. (c) 2000 The American Physical Society.

Authors:
;
Publication Date:
OSTI Identifier:
20216433
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 19; Other Information: PBD: 8 May 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; HEAVY ION REACTIONS; RELATIVISTIC RANGE; GLUONS; SU-2 GROUPS; SU-3 GROUPS; GOLD; PARTON MODEL; ENERGY DENSITY; THEORETICAL DATA

Citation Formats

Krasnitz, Alex, and Venugopalan, Raju. Initial Energy Density of Gluons Produced in Very-High-Energy Nuclear Collisions. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.4309.
Krasnitz, Alex, & Venugopalan, Raju. Initial Energy Density of Gluons Produced in Very-High-Energy Nuclear Collisions. United States. doi:10.1103/PhysRevLett.84.4309.
Krasnitz, Alex, and Venugopalan, Raju. Mon . "Initial Energy Density of Gluons Produced in Very-High-Energy Nuclear Collisions". United States. doi:10.1103/PhysRevLett.84.4309.
@article{osti_20216433,
title = {Initial Energy Density of Gluons Produced in Very-High-Energy Nuclear Collisions},
author = {Krasnitz, Alex and Venugopalan, Raju},
abstractNote = {In very-high-energy nuclear collisions, the initial energy of produced gluons per unit area per unit rapidity, (dE/L{sup 2})/d{eta} , is equal to f(g{sup 2}{mu}L) (g{sup 2}{mu}){sup 3}/g{sup 2} , where {mu}{sup 2} is proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, a nonperturbative computation of f(g{sup 2}{mu}L) shows that it varies rapidly for small g{sup 2}{mu}L but varies only by {approx}25% , from 0.208{+-}0.004 to 0.257{+-}0.005 , for a wide range 35.36 -296.98 in g{sup 2}{mu}L . This includes the range relevant for collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). Extrapolating to SU(3), we estimate dE/d{eta} for Au-Au collisions in the central region at RHIC and LHC. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.4309},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 19,
volume = 84,
place = {United States},
year = {2000},
month = {5}
}