Phase conversion in a weakly first-order quark-hadron transition
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/29793 |
Resumo: | We investigate the process of phase conversion in a thermally driven weakly first-order quark-hadron transition. This scenario is physically appealing even if the nature of this transition in equilibrium proves to be a smooth crossover for vanishing baryonic chemical potential. We construct an effective potential by combining the equation of state obtained within lattice QCD for the partonic sector with that of a gas of resonances in the hadronic phase, and present numerical results on bubble profiles, nucleation rates, and time evolution, including the effects from reheating on the dynamics for different expansion scenarios. Our findings confirm the standard picture of a cosmological first-order transition, in which the process of phase conversion is entirely dominated by nucleation, also in the case of a weakly first-order transition. On the other hand, we show that, even for expansion rates much lower than those expected in high-energy heavy-ion collisions, nucleation is very unlikely, indicating that the main mechanism of phase conversion is spinodal decomposition. Our results are compared to those obtained for a strongly first-order transition, as the one provided by the MIT bag model |
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Moreira, André BessaFraga, Eduardo SouzaMintz, Bruno Werneck2020-08-11T14:08:27Z2020-08-11T14:08:27Z2009-02-12BESSA, A.; FRAGA, E. S.; MINTZ, B. W.. Phase conversion in a weakly first-order quark-hadron transition. Physical Review D, [S.L.], v. 79, n. 3, p. 3-4, 12 fev. 2009. Disponível em: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.79.034012. Acesso em: 04 ago. 2020. http://dx.doi.org/10.1103/physrevd.79.034012https://repositorio.ufrn.br/jspui/handle/123456789/2979310.1103/PhysRevD.79.034012American Physical SocietyAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessPhase conversionQuark-hadron transitionPhase conversion in a weakly first-order quark-hadron transitioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleWe investigate the process of phase conversion in a thermally driven weakly first-order quark-hadron transition. This scenario is physically appealing even if the nature of this transition in equilibrium proves to be a smooth crossover for vanishing baryonic chemical potential. We construct an effective potential by combining the equation of state obtained within lattice QCD for the partonic sector with that of a gas of resonances in the hadronic phase, and present numerical results on bubble profiles, nucleation rates, and time evolution, including the effects from reheating on the dynamics for different expansion scenarios. Our findings confirm the standard picture of a cosmological first-order transition, in which the process of phase conversion is entirely dominated by nucleation, also in the case of a weakly first-order transition. On the other hand, we show that, even for expansion rates much lower than those expected in high-energy heavy-ion collisions, nucleation is very unlikely, indicating that the main mechanism of phase conversion is spinodal decomposition. Our results are compared to those obtained for a strongly first-order transition, as the one provided by the MIT bag modelengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALPhaseConversion_bessa_2009.pdfPhaseConversion_bessa_2009.pdfapplication/pdf674888https://repositorio.ufrn.br/bitstream/123456789/29793/1/PhaseConversion_bessa_2009.pdfc82c3bbf11ec6ed725aa5ee72e47e3f9MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/29793/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/29793/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTPhaseConversion_bessa_2009.pdf.txtPhaseConversion_bessa_2009.pdf.txtExtracted texttext/plain54342https://repositorio.ufrn.br/bitstream/123456789/29793/4/PhaseConversion_bessa_2009.pdf.txt510f09c154e0d2ad907b1603b18356ecMD54THUMBNAILPhaseConversion_bessa_2009.pdf.jpgPhaseConversion_bessa_2009.pdf.jpgGenerated Thumbnailimage/jpeg1706https://repositorio.ufrn.br/bitstream/123456789/29793/5/PhaseConversion_bessa_2009.pdf.jpg89ad0538441573cbb6f8d73dc55f66cfMD55123456789/297932020-08-16 04:12:08.481oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-08-16T07:12:08Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Phase conversion in a weakly first-order quark-hadron transition |
title |
Phase conversion in a weakly first-order quark-hadron transition |
spellingShingle |
Phase conversion in a weakly first-order quark-hadron transition Moreira, André Bessa Phase conversion Quark-hadron transition |
title_short |
Phase conversion in a weakly first-order quark-hadron transition |
title_full |
Phase conversion in a weakly first-order quark-hadron transition |
title_fullStr |
Phase conversion in a weakly first-order quark-hadron transition |
title_full_unstemmed |
Phase conversion in a weakly first-order quark-hadron transition |
title_sort |
Phase conversion in a weakly first-order quark-hadron transition |
author |
Moreira, André Bessa |
author_facet |
Moreira, André Bessa Fraga, Eduardo Souza Mintz, Bruno Werneck |
author_role |
author |
author2 |
Fraga, Eduardo Souza Mintz, Bruno Werneck |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Moreira, André Bessa Fraga, Eduardo Souza Mintz, Bruno Werneck |
dc.subject.por.fl_str_mv |
Phase conversion Quark-hadron transition |
topic |
Phase conversion Quark-hadron transition |
description |
We investigate the process of phase conversion in a thermally driven weakly first-order quark-hadron transition. This scenario is physically appealing even if the nature of this transition in equilibrium proves to be a smooth crossover for vanishing baryonic chemical potential. We construct an effective potential by combining the equation of state obtained within lattice QCD for the partonic sector with that of a gas of resonances in the hadronic phase, and present numerical results on bubble profiles, nucleation rates, and time evolution, including the effects from reheating on the dynamics for different expansion scenarios. Our findings confirm the standard picture of a cosmological first-order transition, in which the process of phase conversion is entirely dominated by nucleation, also in the case of a weakly first-order transition. On the other hand, we show that, even for expansion rates much lower than those expected in high-energy heavy-ion collisions, nucleation is very unlikely, indicating that the main mechanism of phase conversion is spinodal decomposition. Our results are compared to those obtained for a strongly first-order transition, as the one provided by the MIT bag model |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009-02-12 |
dc.date.accessioned.fl_str_mv |
2020-08-11T14:08:27Z |
dc.date.available.fl_str_mv |
2020-08-11T14:08:27Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
BESSA, A.; FRAGA, E. S.; MINTZ, B. W.. Phase conversion in a weakly first-order quark-hadron transition. Physical Review D, [S.L.], v. 79, n. 3, p. 3-4, 12 fev. 2009. Disponível em: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.79.034012. Acesso em: 04 ago. 2020. http://dx.doi.org/10.1103/physrevd.79.034012 |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/29793 |
dc.identifier.doi.none.fl_str_mv |
10.1103/PhysRevD.79.034012 |
identifier_str_mv |
BESSA, A.; FRAGA, E. S.; MINTZ, B. W.. Phase conversion in a weakly first-order quark-hadron transition. Physical Review D, [S.L.], v. 79, n. 3, p. 3-4, 12 fev. 2009. Disponível em: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.79.034012. Acesso em: 04 ago. 2020. http://dx.doi.org/10.1103/physrevd.79.034012 10.1103/PhysRevD.79.034012 |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/29793 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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UFRN |
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UFRN |
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Repositório Institucional da UFRN |
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