Scholars@Duke publication: Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions

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

Publication , Journal Article

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

Published in: Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

December 3, 1998

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.

Duke Scholars

Author Steffen A. Bass Physics

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/S0370-2693(98)01252-0

ISSN

0370-2693

Publication Date

December 3, 1998

Volume

442

Issue

1-4

Start / End Page

443 / 448

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0105 Mathematical Physics

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MLA

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Weber, H., Ernst, C., Bleicher, M., Bravina, L., Stöcker, H., Greiner, W., … Bass, S. A. (1998). Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, 442(1–4), 443–448. https://doi.org/10.1016/S0370-2693(98)01252-0

Weber, H., C. Ernst, M. Bleicher, L. Bravina, H. Stöcker, W. Greiner, C. Spieles, and S. A. Bass. “Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 442, no. 1–4 (December 3, 1998): 443–48. https://doi.org/10.1016/S0370-2693(98)01252-0.

Weber H, Ernst C, Bleicher M, Bravina L, Stöcker H, Greiner W, et al. Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 1998 Dec 3;442(1–4):443–8.

Weber, H., et al. “Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions.” Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, vol. 442, no. 1–4, Dec. 1998, pp. 443–48. Scopus, doi:10.1016/S0370-2693(98)01252-0.

Weber H, Ernst C, Bleicher M, Bravina L, Stöcker H, Greiner W, Spieles C, Bass SA. Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions. Physics Letters Section B Nuclear Elementary Particle and High Energy Physics. 1998 Dec 3;442(1–4):443–448.

Published In

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics

DOI

10.1016/S0370-2693(98)01252-0

ISSN

0370-2693

Publication Date

December 3, 1998

Volume

442

Issue

1-4

Start / End Page

443 / 448

Related Subject Headings

Nuclear & Particles Physics
51 Physical sciences
49 Mathematical sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0201 Astronomical and Space Sciences
0105 Mathematical Physics