dorsal/arxiv
View SchemaHeavy Ion Collisions and the Density Dependence of the Local Mean Field
| Authors | T. Kubo, E. Lehmann, Amand Faessler, Rajeev K. Puri, N. Ohtsuka, K. Tsushima, J. Zipprich, S. W. Huang |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9508007 |
| URL | https://arxiv.org/abs/nucl-th/9508007 |
Abstract
We study the effect of the density dependence of the scalar and the vector part of the nucleonic self-energy in Relativistic Quantum Molecular Dynamics (RQMD) on observables like the transversal flow and the rapidity distribution. The stability of nuclei in RQMD is greatly improved if the density dependence is included in the self-energies compared to a calculation assuming always saturation density of nuclear matter. Different approaches are studied: The main results are calculated with self-energies extracted from a Dirac-Br\"uckner-Hartree-Fock G-matrix of a one boson exchange model, i.e. the Bonn potential. These results are compared with those obtained by a generalization of static Skyrme force, with calculations in the simple linear Walecka model and results of the Br\"uckner-Hartree-Fock G-matrix of the Reid soft core potential. The transversal flow is very sensitive to these different approaches. A comparison with the data is given.
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"abstract": "We study the effect of the density dependence of the scalar and the vector\npart of the nucleonic self-energy in Relativistic Quantum Molecular Dynamics\n(RQMD) on observables like the transversal flow and the rapidity distribution.\nThe stability of nuclei in RQMD is greatly improved if the density dependence\nis included in the self-energies compared to a calculation assuming always\nsaturation density of nuclear matter. Different approaches are studied: The\nmain results are calculated with self-energies extracted from a\nDirac-Br\\\"uckner-Hartree-Fock G-matrix of a one boson exchange model, i.e. the\nBonn potential. These results are compared with those obtained by a\ngeneralization of static Skyrme force, with calculations in the simple linear\nWalecka model and results of the Br\\\"uckner-Hartree-Fock G-matrix of the Reid\nsoft core potential. The transversal flow is very sensitive to these different\napproaches. A comparison with the data is given.",
"arxiv_id": "nucl-th/9508007",
"authors": [
"T. Kubo",
"E. Lehmann",
"Amand Faessler",
"Rajeev K. Puri",
"N. Ohtsuka",
"K. Tsushima",
"J. Zipprich",
"S. W. Huang"
],
"categories": [
"nucl-th"
],
"title": "Heavy Ion Collisions and the Density Dependence of the Local Mean Field",
"url": "https://arxiv.org/abs/nucl-th/9508007"
},
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