dorsal/arxiv
View SchemaContinuous phase transition and negative specific heat in finite nuclei
| Authors | J. N. De, S. K. Samaddar, S. Shlomo, J. B. Natowitz |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0601089 |
| URL | https://arxiv.org/abs/nucl-th/0601089 |
| DOI | 10.1103/PhysRevC.73.034602 |
| Journal | Phys.Rev. C73 (2006) 034602 |
Abstract
The liquid-gas phase transition in finite nuclei is studied in a heated liquid-drop model where the nuclear drop is assumed to be in thermodynamic equilibrium with its own evaporated nucleonic vapor conserving the total baryon number and isospin of the system. It is found that in the liquid-vapor coexistence region the pressure is not a constant on an isotherm indicating that the transition is continuous. At constant pressure, the caloric curve shows some anomalies, namely, the systems studied exhibit negative heat capacity in a small temperature domain. The dependence of this specific feature on the mass and isospin of the nucleus, Coulomb interaction and the chosen pressure is studied. The effects of the presence of clusters in the vapor phase on specific heat have also been explored.
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"abstract": "The liquid-gas phase transition in finite nuclei is studied in a heated\nliquid-drop model where the nuclear drop is assumed to be in thermodynamic\nequilibrium with its own evaporated nucleonic vapor conserving the total baryon\nnumber and isospin of the system. It is found that in the liquid-vapor\ncoexistence region the pressure is not a constant on an isotherm indicating\nthat the transition is continuous. At constant pressure, the caloric curve\nshows some anomalies, namely, the systems studied exhibit negative heat\ncapacity in a small temperature domain. The dependence of this specific feature\non the mass and isospin of the nucleus, Coulomb interaction and the chosen\npressure is studied. The effects of the presence of clusters in the vapor phase\non specific heat have also been explored.",
"arxiv_id": "nucl-th/0601089",
"authors": [
"J. N. De",
"S. K. Samaddar",
"S. Shlomo",
"J. B. Natowitz"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.73.034602",
"journal_ref": "Phys.Rev. C73 (2006) 034602",
"title": "Continuous phase transition and negative specific heat in finite nuclei",
"url": "https://arxiv.org/abs/nucl-th/0601089"
},
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