dorsal/arxiv
View SchemaOn the impossibility of temperature extraction from heavy ion induced particle spectra
| Authors | Jens Konopka, Horst Stoecker, Walter Greiner |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9505018 |
| URL | https://arxiv.org/abs/nucl-th/9505018 |
| DOI | 10.1016/0375-9474(94)00687-I |
| Journal | Nucl.Phys. A583 (1995) 357c-362c |
Abstract
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. However, 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 determination 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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"abstract": "Spectra of various particle species have been calculated with the Quantum\nMolecular Dynamics (QMD) model for very central collisions of Au+Au. They are\ncompatible with the idea of a fully stopped thermal source which exhibits a\ntransversal expansion besides the thermal distribution of an ideal gas.\nHowever, the microscopic analyses of the local flow velocities and temperatures\nindicate much lower temperatures at densities associated with the freeze-out.\nThe results express the overall impossibility of a model-independent\ndetermination of nuclear temperatures from heavy ion spectral data, also at\nother energies e.g. CERN or for other species (i.e. pions, kaons, hyperons)!",
"arxiv_id": "nucl-th/9505018",
"authors": [
"Jens Konopka",
"Horst Stoecker",
"Walter Greiner"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/0375-9474(94)00687-I",
"journal_ref": "Nucl.Phys. A583 (1995) 357c-362c",
"title": "On the impossibility of temperature extraction from heavy ion induced particle spectra",
"url": "https://arxiv.org/abs/nucl-th/9505018"
},
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