Instant preheating mechanism and ultrahigh energy cosmic rays
Autor(a) principal: | |
---|---|
Data de Publicação: | 2004 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevD.70.023003 http://hdl.handle.net/11449/225148 |
Resumo: | Top-down models assume that the still unexplained ultrahigh energy cosmic rays (UHECR's) are the decay products of superheavy particles. Such particles may have been produced by one of the post-inflationary reheating mechanisms and may account for a fraction of the cold dark matter. In this paper, we assess the phenomenological applicability of the simplest instant preheating framework not to describe a reheating process, but as a mechanism to generate relic supermassive particles as possible sources of UHECR's. We use cosmic ray flux and cold dark matter observational data to constrain the parameters of the model. |
id |
UNSP_9745799310fdd242488c9c99aa59e6b2 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/225148 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Instant preheating mechanism and ultrahigh energy cosmic raysTop-down models assume that the still unexplained ultrahigh energy cosmic rays (UHECR's) are the decay products of superheavy particles. Such particles may have been produced by one of the post-inflationary reheating mechanisms and may account for a fraction of the cold dark matter. In this paper, we assess the phenomenological applicability of the simplest instant preheating framework not to describe a reheating process, but as a mechanism to generate relic supermassive particles as possible sources of UHECR's. We use cosmic ray flux and cold dark matter observational data to constrain the parameters of the model.Instituto de Física Universidade de São Paulo Departamento de Fisica Nuclear, CP 66318, São Paulo, SPConselho Natl. de Pesq. e Desenvol. COCEX SEPN 509, Bl. A, Ed. Nazir I, 70750-901 Brasília, DFInstituto de Fisica Teorica Universidade Estadual Paulista, Rua Pamplona, 145, 01405-900 São Paulo, SPInstituto de Fisica Teorica Universidade Estadual Paulista, Rua Pamplona, 145, 01405-900 São Paulo, SPUniversidade de São Paulo (USP)SEPN 509Universidade Estadual Paulista (UNESP)Campos, A. H.Maia, J. M.F.Rosenfeld, R. [UNESP]2022-04-28T20:40:13Z2022-04-28T20:40:13Z2004-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevD.70.023003Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 2, 2004.0556-2821http://hdl.handle.net/11449/22514810.1103/PhysRevD.70.0230032-s2.0-42749106829Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D - Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccess2022-04-28T20:40:13Zoai:repositorio.unesp.br:11449/225148Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T11:41:41.563209Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Instant preheating mechanism and ultrahigh energy cosmic rays |
title |
Instant preheating mechanism and ultrahigh energy cosmic rays |
spellingShingle |
Instant preheating mechanism and ultrahigh energy cosmic rays Campos, A. H. |
title_short |
Instant preheating mechanism and ultrahigh energy cosmic rays |
title_full |
Instant preheating mechanism and ultrahigh energy cosmic rays |
title_fullStr |
Instant preheating mechanism and ultrahigh energy cosmic rays |
title_full_unstemmed |
Instant preheating mechanism and ultrahigh energy cosmic rays |
title_sort |
Instant preheating mechanism and ultrahigh energy cosmic rays |
author |
Campos, A. H. |
author_facet |
Campos, A. H. Maia, J. M.F. Rosenfeld, R. [UNESP] |
author_role |
author |
author2 |
Maia, J. M.F. Rosenfeld, R. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) SEPN 509 Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Campos, A. H. Maia, J. M.F. Rosenfeld, R. [UNESP] |
description |
Top-down models assume that the still unexplained ultrahigh energy cosmic rays (UHECR's) are the decay products of superheavy particles. Such particles may have been produced by one of the post-inflationary reheating mechanisms and may account for a fraction of the cold dark matter. In this paper, we assess the phenomenological applicability of the simplest instant preheating framework not to describe a reheating process, but as a mechanism to generate relic supermassive particles as possible sources of UHECR's. We use cosmic ray flux and cold dark matter observational data to constrain the parameters of the model. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-07-01 2022-04-28T20:40:13Z 2022-04-28T20:40:13Z |
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/PhysRevD.70.023003 Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 2, 2004. 0556-2821 http://hdl.handle.net/11449/225148 10.1103/PhysRevD.70.023003 2-s2.0-42749106829 |
url |
http://dx.doi.org/10.1103/PhysRevD.70.023003 http://hdl.handle.net/11449/225148 |
identifier_str_mv |
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 70, n. 2, 2004. 0556-2821 10.1103/PhysRevD.70.023003 2-s2.0-42749106829 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review D - Particles, Fields, Gravitation and Cosmology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1803045867743084544 |