S. Soff

Microscopic models for ultrarelativistic heavy ion collisions

In this paper, the concepts of microscopic transport theory are introduced and the features and shortcomings of the most commonly used ansatzes are discussed. In particular, the Ultrarelativistic Quantum Molecular Dynamics (UrQMD) transport model is described in great detail. Based on the same principles as QMD and RQMD, it incorporates a vastly extended collision term with full baryon-antibaryon symmetry, 55 baryon and 32 meson species. Isospin is explicitly treated for all hadrons. The range of applicability stretches from

Relativistic hadron-hadron collisions in the ultra-relativistic quantum molecular dynamics model

E_{lab} 200

Strangeness dynamics and transverse pressure in relativistic nucleus-nucleus collisions

GeV/nucleon, allowing for a consistent calculation of excitation functions from the intermediate energy domain up to ultrarelativistic energies. The main physics topics under discussion are stopping, particle production and collective flow.

Collective Flow Signals the Quark-Gluon Plasma

Hadron-hadron (h-h) collisions at high energies are investigated in the ultra-relativistic quantum molecular dynamics (UrQMD) approach. This microscopic transport model describes the phenomenology of hadronic interactions at low and intermediate energies ( 5 GeV, the excitation of colour strings and their subsequent fragmentation into hadrons dominates the multiple production of particles in the UrQMD model. The model shows a fair overall agreement with a large body of experimental h-h data over a wide range of h-h centre-of-mass energies. Hadronic reaction data with higher precision would be useful to support the use of the UrQMD model for relativistic heavy-ion collisions.

Antiflow of Nucleons at the Softest Point of the EoS

We investigate hadron production as well as transverse hadron spectra from proton-proton, proton-nucleus and nucleus-nucleus collisions from 2

Pion interferometry at RHIC: Probing a thermalized quark gluon plasma?

A\cdot

Local equilibrium in heavy ion collisions: Microscopic model versus statistical model analysis

GeV to 21.3

Critical review of quark gluon plasma signatures

A\cdot

Probing the density dependence of the symmetry potential in intermediate-energy heavy ion collisions

TeV within two independent transport approaches (HSD and UrQMD) that are based on quark, diquark, string and hadronic degrees of freedom. The comparison to experimental data on transverse mass spectra from

Probing the density dependence of the symmetry potential at low and high densities

pp