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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/130977
Ver los metadatos del registro completo
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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:UNLP2025-09-29T11:31:13Zoai: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:13292025-09-29 11:31:13.879SEDICI (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 |
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reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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