On the impossibility of temperature extraction from heavy ion induced particle spectra

Spectra of various particle species have been calculated with the Quantum Molecular Dynamics (QMD) model for very central collisions of Au+Au. They are compatible with the idea of a fully stopped thermal source which exh
Spectra of various particle species have been calculated with the Quantum Molecular Dynamics (QMD) model for very central collisions of Au+Au. They are compatible with the idea of a fully stopped thermal source which exhibits a transversal expansion besides the thermal distribution of an ideal gas. How- ever, the microscopic analyses of the local flow velocities and temperatures indicate much lower temperatures at densities associated with the freeze-out. The results express the overall impossibility of a model-independent determi- nation of nuclear temperatures from heavy ion spectral data, also at other energies (e.g. CERN) or for other species (i.e. pions, kaons, hyperons)
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Metadaten
Author:Jens Konopka, Horst Stöcker, Walter Greiner
URN:urn:nbn:de:hebis:30-24307
Document Type:Preprint
Language:English
Date of Publication (online):2006/02/08
Year of first Publication:1995
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2006/02/08
Tag:Kollisionen schwerer Ionen ; Molekulare Dynamik ; QMD ; ideales Gas
QMD; Quantum Molecular Dynamics ; heavy ion collisions ; ideal gas
Source:Nucl.Phys.A583:357C-362C,1995 ; http://arxiv.org/abs/nucl-th/9505018
HeBIS PPN:184929067
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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