Density reorganization in hot nuclei

The density profile of a hot nuclear system produced in intermediate energy heavy ion collisions is studied in a microcanonical formulation with a momentum and density dependent finite range interaction. The caloric curve and the density evolution with excitation are calculated for a number of syste...

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Detalles Bibliográficos
Autores: Samaddar, S. K., De, J. N., Viñas Gausí, Xavier, Centelles Aixalà, Mario
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2007
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/11024
Acceso en línea:https://hdl.handle.net/2445/11024
Access Level:acceso abierto
Palabra clave:Reaccions nuclears
Termodinàmica
Nuclear reactions
Thermodynamics
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spelling Density reorganization in hot nucleiSamaddar, S. K.De, J. N.Viñas Gausí, XavierCentelles Aixalà, MarioReaccions nuclearsTermodinàmicaNuclear reactionsThermodynamicsThe density profile of a hot nuclear system produced in intermediate energy heavy ion collisions is studied in a microcanonical formulation with a momentum and density dependent finite range interaction. The caloric curve and the density evolution with excitation are calculated for a number of systems for the equilibrium mononuclear configuration; they compare favorably with the recent experimental data. The studied density fluctuations are seen to build up rapidly beyond an excitation energy of 8 MeV/u indicating the instability of the system towards nuclear disassembly. Explicit introduction of deformation in the expansion path of the heated nucleus, however, shows that the system might fragment even earlier. We also explore the effects of the nuclear equation of state and of the mass and isospin asymmetry on the nuclear equilibrium configuration and the relevant experimental observables.The American Physical Society2007info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/11024Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.75.054608Physical Review C, 2007, vol. 75, núm. 5, p. 054608-1-054608-13http://dx.doi.org/10.1103/PhysRevC.75.054608(c) The American Physical Society, 2007info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/110242026-05-27T06:46:51Z
dc.title.none.fl_str_mv Density reorganization in hot nuclei
title Density reorganization in hot nuclei
spellingShingle Density reorganization in hot nuclei
Samaddar, S. K.
Reaccions nuclears
Termodinàmica
Nuclear reactions
Thermodynamics
title_short Density reorganization in hot nuclei
title_full Density reorganization in hot nuclei
title_fullStr Density reorganization in hot nuclei
title_full_unstemmed Density reorganization in hot nuclei
title_sort Density reorganization in hot nuclei
dc.creator.none.fl_str_mv Samaddar, S. K.
De, J. N.
Viñas Gausí, Xavier
Centelles Aixalà, Mario
author Samaddar, S. K.
author_facet Samaddar, S. K.
De, J. N.
Viñas Gausí, Xavier
Centelles Aixalà, Mario
author_role author
author2 De, J. N.
Viñas Gausí, Xavier
Centelles Aixalà, Mario
author2_role author
author
author
dc.subject.none.fl_str_mv Reaccions nuclears
Termodinàmica
Nuclear reactions
Thermodynamics
topic Reaccions nuclears
Termodinàmica
Nuclear reactions
Thermodynamics
description The density profile of a hot nuclear system produced in intermediate energy heavy ion collisions is studied in a microcanonical formulation with a momentum and density dependent finite range interaction. The caloric curve and the density evolution with excitation are calculated for a number of systems for the equilibrium mononuclear configuration; they compare favorably with the recent experimental data. The studied density fluctuations are seen to build up rapidly beyond an excitation energy of 8 MeV/u indicating the instability of the system towards nuclear disassembly. Explicit introduction of deformation in the expansion path of the heated nucleus, however, shows that the system might fragment even earlier. We also explore the effects of the nuclear equation of state and of the mass and isospin asymmetry on the nuclear equilibrium configuration and the relevant experimental observables.
publishDate 2007
dc.date.none.fl_str_mv 2007
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/11024
url https://hdl.handle.net/2445/11024
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.75.054608
Physical Review C, 2007, vol. 75, núm. 5, p. 054608-1-054608-13
http://dx.doi.org/10.1103/PhysRevC.75.054608
dc.rights.none.fl_str_mv (c) The American Physical Society, 2007
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 2007
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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