dorsal/arxiv
View SchemaThermodynamics - a valuable approach to multifragmentation?
| Authors | R. Nebauer, J. Aichelin |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9807064 |
| URL | https://arxiv.org/abs/nucl-th/9807064 |
| DOI | 10.1016/S0375-9474(00)00455-3 |
| Journal | Nucl. Phys. A 683 (2001) 605-617 |
Abstract
Since years it has been vividly debated whether multifragmentation is a thermal or a dynamical process. Recently it has been claimed \cite{toek1,po} that new data allow to decide this question. The conclusion, drawn in these papers, are, however, opposite. Whereas \cite{toek1} states that the behavior of different observables as a function of the fragment multiplicity excludes a thermal origin of the fragments in \cite{po} it has been argued that data show a first order phase transition between a liquid and a gaseous phase. It is the aim of this paper to show that both conclusions are premature. They are based on the salient assumption, that the system is sufficiently large to be susceptible to a canonical description. We will show that this is not the case. A micro canonical approach describes the data as good as dynamical calculations. Hence the quest for the physical origin of multifragmentation continues.
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"abstract": "Since years it has been vividly debated whether multifragmentation is a\nthermal or a dynamical process. Recently it has been claimed \\cite{toek1,po}\nthat new data allow to decide this question. The conclusion, drawn in these\npapers, are, however, opposite. Whereas \\cite{toek1} states that the behavior\nof different observables as a function of the fragment multiplicity excludes a\nthermal origin of the fragments in \\cite{po} it has been argued that data show\na first order phase transition between a liquid and a gaseous phase. It is the\naim of this paper to show that both conclusions are premature. They are based\non the salient assumption, that the system is sufficiently large to be\nsusceptible to a canonical description. We will show that this is not the case.\nA micro canonical approach describes the data as good as dynamical\ncalculations. Hence the quest for the physical origin of multifragmentation\ncontinues.",
"arxiv_id": "nucl-th/9807064",
"authors": [
"R. Nebauer",
"J. Aichelin"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0375-9474(00)00455-3",
"journal_ref": "Nucl. Phys. A 683 (2001) 605-617",
"title": "Thermodynamics - a valuable approach to multifragmentation?",
"url": "https://arxiv.org/abs/nucl-th/9807064"
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