Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions


Journal Article

We estimate the energy density ε pile-up at mid-rapidity in central Pb + Pb collisions from 2-200 GeV/nucleon. ε is decomposed into hadronic and partonic contributions. A detailed analysis of the collision dynamics in the framework of a microscopic transport model shows the importance of partonic degrees of freedom and rescattering of leading (di)quarks in the early phase of the reaction for Elab ≥ 30 GeV/nucleon. In Pb + Pb collisions at 160 GeV/nucleon the energy density reaches up to 4 GeV/fm3, 95% of which are contained in partonic degrees of freedom. © 1998 Elsevier Science B.V. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Weber, H; Ernst, C; Bleicher, M; Bravina, L; Stöcker, H; Greiner, W; Spieles, C; Bass, SA

Published Date

  • December 3, 1998

Published In

Volume / Issue

  • 442 / 1-4

Start / End Page

  • 443 - 448

International Standard Serial Number (ISSN)

  • 0370-2693

Digital Object Identifier (DOI)

  • 10.1016/S0370-2693(98)01252-0

Citation Source

  • Scopus