2005/04/29 by Marcus Bleicher
Physics and Astronomy · #Elliptic flow #Excitation #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Proton #Quantum Chromodynamics and Particle Interactions #Rapidity #Scaling #Spectral line #Transverse mass #hep-ph
paper · pdf · doi:10.1088/1742-6596/50/1/059
Proceedings of the ICPAQGP 05
arxiv created 2005/04/29 · openalex publication_date 2006/11/01 · arxiv updated 2015/06/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Longitudinal hadron spectra from Proton-Proton (pp) and nucleus-nucleus (AA) collisions from E lab = 2 AGeV to √ 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.