dorsal/arxiv
View SchemaExperimental and Theoretical Search for a Phase Transition in Nuclear Fragmentation
| Authors | A. Chbihi, O. Schapiro, S. Salou, D. H. E. Gross |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9901016 |
| URL | https://arxiv.org/abs/nucl-th/9901016 |
| Journal | Eur.Phys.J. A5 (1999) 251-255 |
Abstract
Phase transitions of small isolated systems are signaled by the shape of the caloric equation of state e^*(T), the relationship between the excitation energy per nucleon e^* and temperature. In this work we compare the experimentally deduced e^*(T) to the theoretical predictions. The experimentally accessible temperature was extracted from evaporation spectra from incomplete fusion reactions leading to residue nuclei. The experimental e^*(T) dependence exhibits the characteristic S-shape at e^* = 2-3 MeV/A. Such behavior is expected for a finite system at a phase transition. The observed dependence agrees with predictions of the MMMC-model, which simulates the total accessible phase-space of fragmentation.
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"abstract": "Phase transitions of small isolated systems are signaled by the shape of the\ncaloric equation of state e^*(T), the relationship between the excitation\nenergy per nucleon e^* and temperature. In this work we compare the\nexperimentally deduced e^*(T) to the theoretical predictions. The\nexperimentally accessible temperature was extracted from evaporation spectra\nfrom incomplete fusion reactions leading to residue nuclei. The experimental\ne^*(T) dependence exhibits the characteristic S-shape at e^* = 2-3 MeV/A. Such\nbehavior is expected for a finite system at a phase transition. The observed\ndependence agrees with predictions of the MMMC-model, which simulates the total\naccessible phase-space of fragmentation.",
"arxiv_id": "nucl-th/9901016",
"authors": [
"A. Chbihi",
"O. Schapiro",
"S. Salou",
"D. H. E. Gross"
],
"categories": [
"nucl-th",
"cond-mat.stat-mech",
"nucl-ex"
],
"journal_ref": "Eur.Phys.J. A5 (1999) 251-255",
"title": "Experimental and Theoretical Search for a Phase Transition in Nuclear Fragmentation",
"url": "https://arxiv.org/abs/nucl-th/9901016"
},
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