| Thème(s) : |
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| Titre : |
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Break-up fragment topology in statistical multifragmentation models |
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| Auteur : |
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Ad. R. Raduta1 |
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| Laboratoire : |
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| Résumé : |
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Break-up fragmentation patterns together with kinetic and configurational energy fluctuations are investigated in the framework of a microcanonical model with fragment degrees of freedom over a broad excitation energy range. As long as fragment partitioning is approximately preserved, energy fluctuations are found to be rather insensitive to both the way in which the freeze-out volume is constrained and the trajectory followed by the system in the excitation-energy–freeze-out volume space. Due to hard-core repulsion, the freeze-out volume is found to be populated nonuniformly, its highly depleted core giving the source a bubble-like structure. The most probable localization of the largest fragments in the freeze-out volume may be inferred experimentally from their kinematic properties, largely dictated by Coulomb repulsion. |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication
ou d'écriture : |
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2009 |
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| Nom du périodique : |
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| Physical Review C (Phys. Rev. C) |
| Publisher |
American Physical Society |
| ISSN |
0556-2813 (eISSN : 1089-490X) |
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| Volume : |
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80 |
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| Page/Article : |
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014602 [7 p.] |
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