Kaons in a hot and flavor-asymmetric medium

Detalhes bibliográficos
Autor(a) principal: Ruivo, M. C.
Data de Publicação: 1999
Outros Autores: Sousa, C. A. de, Providência, C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/4547
https://doi.org/10.1016/S0375-9474(99)00105-0
Resumo: We investigate the behavior of kaons in a flavor-asymmetric quark medium at finite temperature, within SU(3) Nambu-Jona-Lasinio type models. The effect of the Fermi sea on kaon properties is weaker in the model which includes a vector-pseudovector interaction than in the model without it. The study of the combined effect of density and temperature on the vacuum and kaon properties shows that the low temperature regime does not change significantly the effects observed at T = 0; as the temperature increases the mass splitting between K+ and K- modes, however reduced, is still meaningful.
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spelling Kaons in a hot and flavor-asymmetric mediumNJL modelChiral symmetryThree-flavor thermodynamicsFlavor-asymmetric matterWe investigate the behavior of kaons in a flavor-asymmetric quark medium at finite temperature, within SU(3) Nambu-Jona-Lasinio type models. The effect of the Fermi sea on kaon properties is weaker in the model which includes a vector-pseudovector interaction than in the model without it. The study of the combined effect of density and temperature on the vacuum and kaon properties shows that the low temperature regime does not change significantly the effects observed at T = 0; as the temperature increases the mass splitting between K+ and K- modes, however reduced, is still meaningful.http://www.sciencedirect.com/science/article/B6TVB-497C6VM-37/1/7f9ea882e5478182d9890fe3b7e5c1751999info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleaplication/PDFhttp://hdl.handle.net/10316/4547http://hdl.handle.net/10316/4547https://doi.org/10.1016/S0375-9474(99)00105-0engNuclear Physics A. 651:1 (1999) 59-70Ruivo, M. C.Sousa, C. A. deProvidência, C.info: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:RCAAP2021-10-13T10:14:15Zoai:estudogeral.uc.pt:10316/4547Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:51.335477Repositório 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 Kaons in a hot and flavor-asymmetric medium
title Kaons in a hot and flavor-asymmetric medium
spellingShingle Kaons in a hot and flavor-asymmetric medium
Ruivo, M. C.
NJL model
Chiral symmetry
Three-flavor thermodynamics
Flavor-asymmetric matter
title_short Kaons in a hot and flavor-asymmetric medium
title_full Kaons in a hot and flavor-asymmetric medium
title_fullStr Kaons in a hot and flavor-asymmetric medium
title_full_unstemmed Kaons in a hot and flavor-asymmetric medium
title_sort Kaons in a hot and flavor-asymmetric medium
author Ruivo, M. C.
author_facet Ruivo, M. C.
Sousa, C. A. de
Providência, C.
author_role author
author2 Sousa, C. A. de
Providência, C.
author2_role author
author
dc.contributor.author.fl_str_mv Ruivo, M. C.
Sousa, C. A. de
Providência, C.
dc.subject.por.fl_str_mv NJL model
Chiral symmetry
Three-flavor thermodynamics
Flavor-asymmetric matter
topic NJL model
Chiral symmetry
Three-flavor thermodynamics
Flavor-asymmetric matter
description We investigate the behavior of kaons in a flavor-asymmetric quark medium at finite temperature, within SU(3) Nambu-Jona-Lasinio type models. The effect of the Fermi sea on kaon properties is weaker in the model which includes a vector-pseudovector interaction than in the model without it. The study of the combined effect of density and temperature on the vacuum and kaon properties shows that the low temperature regime does not change significantly the effects observed at T = 0; as the temperature increases the mass splitting between K+ and K- modes, however reduced, is still meaningful.
publishDate 1999
dc.date.none.fl_str_mv 1999
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/10316/4547
http://hdl.handle.net/10316/4547
https://doi.org/10.1016/S0375-9474(99)00105-0
url http://hdl.handle.net/10316/4547
https://doi.org/10.1016/S0375-9474(99)00105-0
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nuclear Physics A. 651:1 (1999) 59-70
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv aplication/PDF
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