Excitation function of the longitudinal expansion in central nuclear collisions
- Longitudinal hadron spectra from proton-proton (pp) and nucleus-nucleus (AA) collisions from E_lab= 2 AGeV to sqrt s=200 AGeV are investigated. The widths of the rapidity spectra for various particle species increases monotonously with energy. The present calculation indicates no sign of a step like behaviour as excepted from the Kaon transverse mass systematics. For Pions, the transport simulation is consistent with a Landau type scaling of the rapidity widths, both in central AA reactions and in pp collisions. However, other hadron species do not follow the Landau scaling. The present model predicts a decreasing rapidity width with particle mass for newly produced particles, not supporting a Landau type flow interpretation.
Author: | Marcus BleicherORCiDGND |
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URN: | urn:nbn:de:hebis:30-19849 |
ArXiv Id: | http://arxiv.org/abs/hep-ph/0504207 |
Document Type: | Preprint |
Language: | English |
Date of Publication (online): | 2005/10/27 |
Year of first Publication: | 2005 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2005/10/27 |
HeBIS-PPN: | 190627514 |
Institutes: | Physik / Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Licence (German): | ![]() |