Near-Fields and Initial Energy Density in High Energy Nuclear Collisions

Abstract

We calculate the classical gluon field created at early times in collisions of large nuclei at high energies. We find that the field is dominated by the longitudinal chromoelectric and chromomagnetic components. We estimate the initial energy density of this gluon field to be approximately 260 GeV/fm${}^3$ at RHIC.

4 pages, 1 fig; v2: some new material included, discussion improved, major conclusions unchanged

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