Fermion production during preheating after hybrid inflation

Autores
Garcia-Bellido, Juan; Mollerach, Silvia; Roulet, Esteban
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
At the end of inflation, the coherent oscillations of the inflation field may resonantly amplify the long wavelength modes of both bosons and fermions coupled to it. We study the resonant production of both kinds of particles during preheating in a model of hybrid inflation. The coherent time evolution of the inflation and the Higgs fields after inflation induce a very different production of fermions depending on whether they are coupled to the Higgs or to the inflation. For reasonable values of the model parameters, the fermion production through parametric resonance can be very efficient. We study the relative growth of the fermion and boson energy densities during preheating in hybrid models. During the initial stage of preheating, fermion production dominates the relative energy density, while the exponential growth of bosonic modes soon takes over.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Cosmology of Theories beyond the SM
Physics of the Early Universe
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/130977
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/130977
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Fermion production during preheating after hybrid inflationGarcia-Bellido, JuanMollerach, SilviaRoulet, EstebanCiencias ExactasCosmology of Theories beyond the SMPhysics of the Early UniverseAt the end of inflation, the coherent oscillations of the inflation field may resonantly amplify the long wavelength modes of both bosons and fermions coupled to it. We study the resonant production of both kinds of particles during preheating in a model of hybrid inflation. The coherent time evolution of the inflation and the Higgs fields after inflation induce a very different production of fermions depending on whether they are coupled to the Higgs or to the inflation. For reasonable values of the model parameters, the fermion production through parametric resonance can be very efficient. We study the relative growth of the fermion and boson energy densities during preheating in hybrid models. During the initial stage of preheating, fermion production dominates the relative energy density, while the exponential growth of bosonic modes soon takes over.Facultad de Ciencias Exactas2000-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/130977enginfo:eu-repo/semantics/altIdentifier/issn/1029-8479info:eu-repo/semantics/altIdentifier/arxiv/hep-ph/0002076info:eu-repo/semantics/altIdentifier/doi/10.1088/1126-6708/2000/02/034info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:12:11Zoai:sedici.unlp.edu.ar:10915/130977Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:12:11.648SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Fermion production during preheating after hybrid inflation
title Fermion production during preheating after hybrid inflation
spellingShingle Fermion production during preheating after hybrid inflation
Garcia-Bellido, Juan
Ciencias Exactas
Cosmology of Theories beyond the SM
Physics of the Early Universe
title_short Fermion production during preheating after hybrid inflation
title_full Fermion production during preheating after hybrid inflation
title_fullStr Fermion production during preheating after hybrid inflation
title_full_unstemmed Fermion production during preheating after hybrid inflation
title_sort Fermion production during preheating after hybrid inflation
dc.creator.none.fl_str_mv Garcia-Bellido, Juan
Mollerach, Silvia
Roulet, Esteban
author Garcia-Bellido, Juan
author_facet Garcia-Bellido, Juan
Mollerach, Silvia
Roulet, Esteban
author_role author
author2 Mollerach, Silvia
Roulet, Esteban
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Cosmology of Theories beyond the SM
Physics of the Early Universe
topic Ciencias Exactas
Cosmology of Theories beyond the SM
Physics of the Early Universe
dc.description.none.fl_txt_mv At the end of inflation, the coherent oscillations of the inflation field may resonantly amplify the long wavelength modes of both bosons and fermions coupled to it. We study the resonant production of both kinds of particles during preheating in a model of hybrid inflation. The coherent time evolution of the inflation and the Higgs fields after inflation induce a very different production of fermions depending on whether they are coupled to the Higgs or to the inflation. For reasonable values of the model parameters, the fermion production through parametric resonance can be very efficient. We study the relative growth of the fermion and boson energy densities during preheating in hybrid models. During the initial stage of preheating, fermion production dominates the relative energy density, while the exponential growth of bosonic modes soon takes over.
Facultad de Ciencias Exactas
description At the end of inflation, the coherent oscillations of the inflation field may resonantly amplify the long wavelength modes of both bosons and fermions coupled to it. We study the resonant production of both kinds of particles during preheating in a model of hybrid inflation. The coherent time evolution of the inflation and the Higgs fields after inflation induce a very different production of fermions depending on whether they are coupled to the Higgs or to the inflation. For reasonable values of the model parameters, the fermion production through parametric resonance can be very efficient. We study the relative growth of the fermion and boson energy densities during preheating in hybrid models. During the initial stage of preheating, fermion production dominates the relative energy density, while the exponential growth of bosonic modes soon takes over.
publishDate 2000
dc.date.none.fl_str_mv 2000-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/130977
url http://sedici.unlp.edu.ar/handle/10915/130977
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1029-8479
info:eu-repo/semantics/altIdentifier/arxiv/hep-ph/0002076
info:eu-repo/semantics/altIdentifier/doi/10.1088/1126-6708/2000/02/034
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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