dorsal/arxiv
View SchemaTransition from participant to spectator fragmentation in Au+Au reaction between 60 AMeV and 150 AMeV
| Authors | K. Zbiri, A. LeFèvre, J. Aichelin, J. Łukasik, W. Reisdorf, F. Gulminelli, U. Lynen, W. F. J. Müller, H. Orth, C. Schwarz, C. Sfienti, W. Trautmann, K. Turzó, B. Zwiegliński, G. Auger, J. L. Charvet, A. Chbihi, R. Dayras, D. Durand, J. D. Frankland, R. Legrain, N. Le Neindre, O. Lopez, L. Nalpas, M. Parlog, M. F. Rivet, E. Rosato, E. Vient, M. Vigilante, C. Volant, J. P. Wieleczko |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0607012 |
| URL | https://arxiv.org/abs/nucl-th/0607012 |
| DOI | 10.1103/PhysRevC.75.034612 |
| Journal | Phys.Rev.C75:034612,2007 |
Abstract
Using the quantum molecular dynamics approach, we analyze the results of the recent INDRA Au+Au experiments at GSI in the energy range between 60 AMeV and 150 AMeV. It turns out that in this energy region the transition toward a participant-spectator scenario takes place. The large Au+Au system displays in the simulations as in the experiment simultaneously dynamical and statistical behavior which we analyze in detail: The composition of fragments close to midrapidity follows statistical laws and the system shows bi-modality, i.e. a sudden transition between different fragmentation pattern as a function of the centrality as expected for a phase transition. The fragment spectra at small and large rapidities, on the other hand, are determined by dynamics and the system as a whole does not come to equilibrium, an observation which is confirmed by FOPI experiments for the same system.
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"abstract": "Using the quantum molecular dynamics approach, we analyze the results of the\nrecent INDRA Au+Au experiments at GSI in the energy range between 60 AMeV and\n150 AMeV. It turns out that in this energy region the transition toward a\nparticipant-spectator scenario takes place. The large Au+Au system displays in\nthe simulations as in the experiment simultaneously dynamical and statistical\nbehavior which we analyze in detail: The composition of fragments close to\nmidrapidity follows statistical laws and the system shows bi-modality, i.e. a\nsudden transition between different fragmentation pattern as a function of the\ncentrality as expected for a phase transition. The fragment spectra at small\nand large rapidities, on the other hand, are determined by dynamics and the\nsystem as a whole does not come to equilibrium, an observation which is\nconfirmed by FOPI experiments for the same system.",
"arxiv_id": "nucl-th/0607012",
"authors": [
"K. Zbiri",
"A. LeF\u00e8vre",
"J. Aichelin",
"J. \u0141ukasik",
"W. Reisdorf",
"F. Gulminelli",
"U. Lynen",
"W. F. J. M\u00fcller",
"H. Orth",
"C. Schwarz",
"C. Sfienti",
"W. Trautmann",
"K. Turz\u00f3",
"B. Zwiegli\u0144ski",
"G. Auger",
"J. L. Charvet",
"A. Chbihi",
"R. Dayras",
"D. Durand",
"J. D. Frankland",
"R. Legrain",
"N. Le Neindre",
"O. Lopez",
"L. Nalpas",
"M. Parlog",
"M. F. Rivet",
"E. Rosato",
"E. Vient",
"M. Vigilante",
"C. Volant",
"J. P. Wieleczko"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.75.034612",
"journal_ref": "Phys.Rev.C75:034612,2007",
"title": "Transition from participant to spectator fragmentation in Au+Au reaction between 60 AMeV and 150 AMeV",
"url": "https://arxiv.org/abs/nucl-th/0607012"
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