Initial energy density and gluon distribution from the Glasma in heavy-ion collisions

Details Initial energy density and gluon distribution from the Glasma in heavy-ion collisions Initial energy density and gluon distribution from the Glasma in heavy-ion collisions

2008-11-04

arxiv.org/abs/0811.0437v1

Phys.Rev.C79:024909,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 8 figures, 3 tables

Scientific paper

10.1103/PhysRevC.79.024909

We estimate the energy density and the gluon distribution associated with the classical fields describing the early-time dynamics of the heavy-ion collisions. We first decompose the energy density into the momentum components exactly in the McLerran-Venugopalan model, with the use of the Wilson line correlators. Then we evolve the energy density with the free-field equation, which is justified by the dominance of the ultraviolet modes near the collision point. We also discuss the improvement with inclusion of nonlinear terms into the time evolution. Our numerical results at RHIC energy are fairly consistent with the empirical values.

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