Self-consistent quantum effects in the quark meson coupling model
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevC.66.055207 http://hdl.handle.net/11449/228429 |
Resumo: | We derive the equation of state of nuclear matter for the quark-meson coupling model taking into account quantum fluctuations of the [Formula Presented] meson as well as vacuum polarization effects for the nucleons. This model incorporates explicitly quark degrees of freedom with quarks coupled to the scalar and vector mesons. Quantum fluctuations lead to a softer equation of state for nuclear matter giving a lower value of incompressibility than would be reached without quantum effects. The in-medium nucleon and [Formula Presented]-meson masses are also calculated in a self-consistent manner. The spectral function of the [Formula Presented] meson is calculated and the [Formula Presented] mass has the value increased with respect to the purely classical approximation at high densities. © 2002 The American Physical Society. |
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Self-consistent quantum effects in the quark meson coupling modelWe derive the equation of state of nuclear matter for the quark-meson coupling model taking into account quantum fluctuations of the [Formula Presented] meson as well as vacuum polarization effects for the nucleons. This model incorporates explicitly quark degrees of freedom with quarks coupled to the scalar and vector mesons. Quantum fluctuations lead to a softer equation of state for nuclear matter giving a lower value of incompressibility than would be reached without quantum effects. The in-medium nucleon and [Formula Presented]-meson masses are also calculated in a self-consistent manner. The spectral function of the [Formula Presented] meson is calculated and the [Formula Presented] mass has the value increased with respect to the purely classical approximation at high densities. © 2002 The American Physical Society.Instituto de Física Teórica Universidade Estadual Paulista, Rua Pamplona 145, São Paulo, CEP 01405-900Instituto de Física Universidade de São Paulo, Caixa Postal 66318, São Paulo, CEP 05315-970Instituto de Física Teórica Universidade Estadual Paulista, Rua Pamplona 145, São Paulo, CEP 01405-900Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Panda, P. K. [UNESP]Braghin, F. L.2022-04-29T08:14:44Z2022-04-29T08:14:44Z2002-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7http://dx.doi.org/10.1103/PhysRevC.66.055207Physical Review C - Nuclear Physics, v. 66, n. 5, p. 7-, 2002.1089-490X0556-2813http://hdl.handle.net/11449/22842910.1103/PhysRevC.66.0552072-s2.0-85035275403Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review C - Nuclear Physicsinfo:eu-repo/semantics/openAccess2022-04-29T08:14:44Zoai:repositorio.unesp.br:11449/228429Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:14:54.415080Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Self-consistent quantum effects in the quark meson coupling model |
title |
Self-consistent quantum effects in the quark meson coupling model |
spellingShingle |
Self-consistent quantum effects in the quark meson coupling model Panda, P. K. [UNESP] |
title_short |
Self-consistent quantum effects in the quark meson coupling model |
title_full |
Self-consistent quantum effects in the quark meson coupling model |
title_fullStr |
Self-consistent quantum effects in the quark meson coupling model |
title_full_unstemmed |
Self-consistent quantum effects in the quark meson coupling model |
title_sort |
Self-consistent quantum effects in the quark meson coupling model |
author |
Panda, P. K. [UNESP] |
author_facet |
Panda, P. K. [UNESP] Braghin, F. L. |
author_role |
author |
author2 |
Braghin, F. L. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Panda, P. K. [UNESP] Braghin, F. L. |
description |
We derive the equation of state of nuclear matter for the quark-meson coupling model taking into account quantum fluctuations of the [Formula Presented] meson as well as vacuum polarization effects for the nucleons. This model incorporates explicitly quark degrees of freedom with quarks coupled to the scalar and vector mesons. Quantum fluctuations lead to a softer equation of state for nuclear matter giving a lower value of incompressibility than would be reached without quantum effects. The in-medium nucleon and [Formula Presented]-meson masses are also calculated in a self-consistent manner. The spectral function of the [Formula Presented] meson is calculated and the [Formula Presented] mass has the value increased with respect to the purely classical approximation at high densities. © 2002 The American Physical Society. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-01-01 2022-04-29T08:14:44Z 2022-04-29T08:14:44Z |
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://dx.doi.org/10.1103/PhysRevC.66.055207 Physical Review C - Nuclear Physics, v. 66, n. 5, p. 7-, 2002. 1089-490X 0556-2813 http://hdl.handle.net/11449/228429 10.1103/PhysRevC.66.055207 2-s2.0-85035275403 |
url |
http://dx.doi.org/10.1103/PhysRevC.66.055207 http://hdl.handle.net/11449/228429 |
identifier_str_mv |
Physical Review C - Nuclear Physics, v. 66, n. 5, p. 7-, 2002. 1089-490X 0556-2813 10.1103/PhysRevC.66.055207 2-s2.0-85035275403 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review C - Nuclear Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
7 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128336181854208 |