Radiatively induced non linearity in the Walecka model

Detalhes bibliográficos
Autor(a) principal: Cavagnoli,Rafael
Data de Publicação: 2010
Outros Autores: Pinto,Marcus Benghi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332010000400014
Resumo: We evaluate the effective potential for the conventional linear Walecka non perturbatively up to one loop. This quantity is then renormalized with a prescription which allows finite vacuum contributions to the three as well as four 1PI Green's functions to survive. These terms, which are absent in the standard relativistic Hartree approximation, have a logarithmic energy scale dependence that can be tuned so as to mimic the effects of ø³ and ø4 type of terms present in the non linear Walecka model improving quantities such as the compressibility modulus and the effective nucleon mass, at saturation, by considering energy scales which are very close to the nucleon mass at vanishing density.
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spelling Radiatively induced non linearity in the Walecka modelRenormalizationNuclear matterFinite densitiesVacuum correctionsWalecka modelWe evaluate the effective potential for the conventional linear Walecka non perturbatively up to one loop. This quantity is then renormalized with a prescription which allows finite vacuum contributions to the three as well as four 1PI Green's functions to survive. These terms, which are absent in the standard relativistic Hartree approximation, have a logarithmic energy scale dependence that can be tuned so as to mimic the effects of ø³ and ø4 type of terms present in the non linear Walecka model improving quantities such as the compressibility modulus and the effective nucleon mass, at saturation, by considering energy scales which are very close to the nucleon mass at vanishing density.Sociedade Brasileira de Física2010-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332010000400014Brazilian Journal of Physics v.40 n.4 2010reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332010000400014info:eu-repo/semantics/openAccessCavagnoli,RafaelPinto,Marcus Benghieng2011-01-03T00:00:00Zoai:scielo:S0103-97332010000400014Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2011-01-03T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Radiatively induced non linearity in the Walecka model
title Radiatively induced non linearity in the Walecka model
spellingShingle Radiatively induced non linearity in the Walecka model
Cavagnoli,Rafael
Renormalization
Nuclear matter
Finite densities
Vacuum corrections
Walecka model
title_short Radiatively induced non linearity in the Walecka model
title_full Radiatively induced non linearity in the Walecka model
title_fullStr Radiatively induced non linearity in the Walecka model
title_full_unstemmed Radiatively induced non linearity in the Walecka model
title_sort Radiatively induced non linearity in the Walecka model
author Cavagnoli,Rafael
author_facet Cavagnoli,Rafael
Pinto,Marcus Benghi
author_role author
author2 Pinto,Marcus Benghi
author2_role author
dc.contributor.author.fl_str_mv Cavagnoli,Rafael
Pinto,Marcus Benghi
dc.subject.por.fl_str_mv Renormalization
Nuclear matter
Finite densities
Vacuum corrections
Walecka model
topic Renormalization
Nuclear matter
Finite densities
Vacuum corrections
Walecka model
description We evaluate the effective potential for the conventional linear Walecka non perturbatively up to one loop. This quantity is then renormalized with a prescription which allows finite vacuum contributions to the three as well as four 1PI Green's functions to survive. These terms, which are absent in the standard relativistic Hartree approximation, have a logarithmic energy scale dependence that can be tuned so as to mimic the effects of ø³ and ø4 type of terms present in the non linear Walecka model improving quantities such as the compressibility modulus and the effective nucleon mass, at saturation, by considering energy scales which are very close to the nucleon mass at vanishing density.
publishDate 2010
dc.date.none.fl_str_mv 2010-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332010000400014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332010000400014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332010000400014
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.40 n.4 2010
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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