Excitation function of energy density and partonic degrees of freedom in relativistic heavy ion collisions
- We estimate the energy density epsilon pile-up at mid-rapidity in central Pb+Pb collisions from 2 200 GeV/nucleon. epsilon 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.
| Author: | H. Weber, Christoph Ernst, Marcus BleicherORCiDGND, Larissa BravinaORCiDGND, Horst StöckerORCiDGND, Walter GreinerGND, Christian Spieles, Steffen A. BassORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-22977 |
| Document Type: | Preprint |
| Language: | English |
| Date of Publication (online): | 2005/12/09 |
| Year of first Publication: | 1998 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2005/12/09 |
| Tag: | Energie; Kollisionen schwerer Ionen; Quark Gluon Plasma QGP; Quark Gluon Plasma; energy; heavy ion collisions |
| Source: | Phys.Lett.B442:443-448,1998, http://www.arxiv.org/abs/nucl-th/9808021 Version 2 |
| HeBIS-PPN: | 185379400 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Licence (German): |  Deutsches Urheberrecht |
