Interacting dark sector with variable vacuum energy

Autores
Chimento, Luis Pascual; Richarte, Martín Gustavo; Sánchez García, Iván E.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We examine a cosmological scenario where dark matter is coupled to a variable vacuum energy while baryons and photons are two decoupled components for a spatially flat Friedmann-Robertson-Walker spacetime. We apply the χ2 method to the updated observational Hubble data for constraining the cosmological parameters and analyze the amount of dark energy in the radiation era. We show that our model fulfills the severe bound of Ωx(z≃1100)<0.009 at the 2σ level, so it is consistent with the recent analysis that includes cosmic microwave background anisotropy measurements from the Planck survey, the Atacama Cosmology Telescope, and the South Pole Telescope along with the future constraints achievable by the Euclid and CMBPol experiments, and fulfills the stringent bound Ωx(z≃1010)<0.04 at the 2σ level in the big-bang nucleosynthesis epoch.
Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires; Argentina;
Fil: Richarte, Martín Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires; Argentina;
Fil: Sánchez García, Iván E..
Materia
nonlinear interaction
variable vacuum energy
early dark energy
dark matter
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/664
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/664
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Interacting dark sector with variable vacuum energyChimento, Luis PascualRicharte, Martín GustavoSánchez García, Iván E.nonlinear interactionvariable vacuum energyearly dark energydark matterhttps://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3We examine a cosmological scenario where dark matter is coupled to a variable vacuum energy while baryons and photons are two decoupled components for a spatially flat Friedmann-Robertson-Walker spacetime. We apply the χ2 method to the updated observational Hubble data for constraining the cosmological parameters and analyze the amount of dark energy in the radiation era. We show that our model fulfills the severe bound of Ωx(z≃1100)<0.009 at the 2σ level, so it is consistent with the recent analysis that includes cosmic microwave background anisotropy measurements from the Planck survey, the Atacama Cosmology Telescope, and the South Pole Telescope along with the future constraints achievable by the Euclid and CMBPol experiments, and fulfills the stringent bound Ωx(z≃1010)<0.04 at the 2σ level in the big-bang nucleosynthesis epoch.Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires; Argentina;Fil: Richarte, Martín Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires; Argentina;Fil: Sánchez García, Iván E..Amer Physical Soc2013-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/664Chimento, Luis Pascual; Richarte, Martín Gustavo; Sánchez García, Iván E.; Interacting dark sector with variable vacuum energy; Amer Physical Soc; Physical Review D; 88; 10-2013; 87301-87306;1550-7998enginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.88.087301info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:43Zoai:ri.conicet.gov.ar:11336/664instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:01:43.471CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Interacting dark sector with variable vacuum energy
title Interacting dark sector with variable vacuum energy
spellingShingle Interacting dark sector with variable vacuum energy
Chimento, Luis Pascual
nonlinear interaction
variable vacuum energy
early dark energy
dark matter
title_short Interacting dark sector with variable vacuum energy
title_full Interacting dark sector with variable vacuum energy
title_fullStr Interacting dark sector with variable vacuum energy
title_full_unstemmed Interacting dark sector with variable vacuum energy
title_sort Interacting dark sector with variable vacuum energy
dc.creator.none.fl_str_mv Chimento, Luis Pascual
Richarte, Martín Gustavo
Sánchez García, Iván E.
author Chimento, Luis Pascual
author_facet Chimento, Luis Pascual
Richarte, Martín Gustavo
Sánchez García, Iván E.
author_role author
author2 Richarte, Martín Gustavo
Sánchez García, Iván E.
author2_role author
author
dc.subject.none.fl_str_mv nonlinear interaction
variable vacuum energy
early dark energy
dark matter
topic nonlinear interaction
variable vacuum energy
early dark energy
dark matter
purl_subject.fl_str_mv https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
dc.description.none.fl_txt_mv We examine a cosmological scenario where dark matter is coupled to a variable vacuum energy while baryons and photons are two decoupled components for a spatially flat Friedmann-Robertson-Walker spacetime. We apply the χ2 method to the updated observational Hubble data for constraining the cosmological parameters and analyze the amount of dark energy in the radiation era. We show that our model fulfills the severe bound of Ωx(z≃1100)<0.009 at the 2σ level, so it is consistent with the recent analysis that includes cosmic microwave background anisotropy measurements from the Planck survey, the Atacama Cosmology Telescope, and the South Pole Telescope along with the future constraints achievable by the Euclid and CMBPol experiments, and fulfills the stringent bound Ωx(z≃1010)<0.04 at the 2σ level in the big-bang nucleosynthesis epoch.
Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires; Argentina;
Fil: Richarte, Martín Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires; Argentina;
Fil: Sánchez García, Iván E..
description We examine a cosmological scenario where dark matter is coupled to a variable vacuum energy while baryons and photons are two decoupled components for a spatially flat Friedmann-Robertson-Walker spacetime. We apply the χ2 method to the updated observational Hubble data for constraining the cosmological parameters and analyze the amount of dark energy in the radiation era. We show that our model fulfills the severe bound of Ωx(z≃1100)<0.009 at the 2σ level, so it is consistent with the recent analysis that includes cosmic microwave background anisotropy measurements from the Planck survey, the Atacama Cosmology Telescope, and the South Pole Telescope along with the future constraints achievable by the Euclid and CMBPol experiments, and fulfills the stringent bound Ωx(z≃1010)<0.04 at the 2σ level in the big-bang nucleosynthesis epoch.
publishDate 2013
dc.date.none.fl_str_mv 2013-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/664
Chimento, Luis Pascual; Richarte, Martín Gustavo; Sánchez García, Iván E.; Interacting dark sector with variable vacuum energy; Amer Physical Soc; Physical Review D; 88; 10-2013; 87301-87306;
1550-7998
url http://hdl.handle.net/11336/664
identifier_str_mv Chimento, Luis Pascual; Richarte, Martín Gustavo; Sánchez García, Iván E.; Interacting dark sector with variable vacuum energy; Amer Physical Soc; Physical Review D; 88; 10-2013; 87301-87306;
1550-7998
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.88.087301
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Amer Physical Soc
publisher.none.fl_str_mv Amer Physical Soc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269713780965376
score 13.13397

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