Aspects of isentropic trajectories in chiral effective models

Detalhes bibliográficos
Autor(a) principal: Stiele, Rainer
Data de Publicação: 2020
Outros Autores: Alberico, Wanda Maria, Beraudo, Andrea, Pereira, Renan Câmara, Costa, Pedro, Hansen, Hubert, Motta, Mario
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/106327
https://doi.org/10.1088/1742-6596/1667/1/012043
Resumo: The evolution of the fireball in heavy ion collisions is an isentropic process, meaning that it follows a trajectory of constant entropy per baryon in the phase diagram of the strong interaction. The collective acceleration of the system is determined by the speed of sound, while fluctuations of conserved charges are encoded in quark-number susceptibilities: together, they leave their imprint in final observables. Here, this isentropic evolution will be analysed within chiral effective models that account for both chiral and center symmetry breaking, two central aspects of QCD. Our discussion focusses on the impact on the isentropic trajectories of the treatment of high-momentum modes, of the meson contribution to thermodynamics and of the number of quark flavours.
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spelling Aspects of isentropic trajectories in chiral effective modelsThe evolution of the fireball in heavy ion collisions is an isentropic process, meaning that it follows a trajectory of constant entropy per baryon in the phase diagram of the strong interaction. The collective acceleration of the system is determined by the speed of sound, while fluctuations of conserved charges are encoded in quark-number susceptibilities: together, they leave their imprint in final observables. Here, this isentropic evolution will be analysed within chiral effective models that account for both chiral and center symmetry breaking, two central aspects of QCD. Our discussion focusses on the impact on the isentropic trajectories of the treatment of high-momentum modes, of the meson contribution to thermodynamics and of the number of quark flavours.IOP Publishing Ltd2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/106327http://hdl.handle.net/10316/106327https://doi.org/10.1088/1742-6596/1667/1/012043eng1742-65881742-6596Stiele, RainerAlberico, Wanda MariaBeraudo, AndreaPereira, Renan CâmaraCosta, PedroHansen, HubertMotta, Marioinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-30T20:35:00Zoai:estudogeral.uc.pt:10316/106327Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:22:48.084874Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Aspects of isentropic trajectories in chiral effective models
title Aspects of isentropic trajectories in chiral effective models
spellingShingle Aspects of isentropic trajectories in chiral effective models
Stiele, Rainer
title_short Aspects of isentropic trajectories in chiral effective models
title_full Aspects of isentropic trajectories in chiral effective models
title_fullStr Aspects of isentropic trajectories in chiral effective models
title_full_unstemmed Aspects of isentropic trajectories in chiral effective models
title_sort Aspects of isentropic trajectories in chiral effective models
author Stiele, Rainer
author_facet Stiele, Rainer
Alberico, Wanda Maria
Beraudo, Andrea
Pereira, Renan Câmara
Costa, Pedro
Hansen, Hubert
Motta, Mario
author_role author
author2 Alberico, Wanda Maria
Beraudo, Andrea
Pereira, Renan Câmara
Costa, Pedro
Hansen, Hubert
Motta, Mario
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Stiele, Rainer
Alberico, Wanda Maria
Beraudo, Andrea
Pereira, Renan Câmara
Costa, Pedro
Hansen, Hubert
Motta, Mario
description The evolution of the fireball in heavy ion collisions is an isentropic process, meaning that it follows a trajectory of constant entropy per baryon in the phase diagram of the strong interaction. The collective acceleration of the system is determined by the speed of sound, while fluctuations of conserved charges are encoded in quark-number susceptibilities: together, they leave their imprint in final observables. Here, this isentropic evolution will be analysed within chiral effective models that account for both chiral and center symmetry breaking, two central aspects of QCD. Our discussion focusses on the impact on the isentropic trajectories of the treatment of high-momentum modes, of the meson contribution to thermodynamics and of the number of quark flavours.
publishDate 2020
dc.date.none.fl_str_mv 2020
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.uri.fl_str_mv http://hdl.handle.net/10316/106327
http://hdl.handle.net/10316/106327
https://doi.org/10.1088/1742-6596/1667/1/012043
url http://hdl.handle.net/10316/106327
https://doi.org/10.1088/1742-6596/1667/1/012043
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1742-6588
1742-6596
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv IOP Publishing Ltd
publisher.none.fl_str_mv IOP Publishing Ltd
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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