Thermal axion production

We reconsider thermal production of axions in the early universe, including axion couplings to all Standard Model (SM>) particles. Concerning the axion coupling to gluons, we find that thermal effects enhance the axion production rate by a factor of few with respect to previous computations perfo...

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Detalles Bibliográficos
Autores: Salvio, Alberto, Strumia, Alessandro, Xue, Wei
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/96477
Acceso en línea:http://hdl.handle.net/10261/96477
Access Level:acceso abierto
Palabra clave:Particle physics - cosmology connection
Axions
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spelling Thermal axion productionSalvio, AlbertoStrumia, AlessandroXue, WeiParticle physics - cosmology connectionAxionsWe reconsider thermal production of axions in the early universe, including axion couplings to all Standard Model (SM>) particles. Concerning the axion coupling to gluons, we find that thermal effects enhance the axion production rate by a factor of few with respect to previous computations performed in the limit of small strong gauge coupling. Furthermore, we find that the top Yukawa coupling induces a much larger axion production rate, unless the axion couples to SM particles only via anomalies.This work was supported in part by the European Programme PITN-GA-2009-23792 (UNILHC). The work of Alberto Salvio has been supported by the Spanish Ministry of Economy and Competitiveness Consolider-CPAN (CSD2007-00042), the grant SEV-2012-0249 of the \Centro de Excelencia Severo Ochoa" Programme and the grant HEPHACOS-S2009/ESP1473 from the C.A. de Madrid. This work was supported by the ESF grant MTT8 and by SF0690030s09 project.Peer reviewedInstitute of Physics PublishingSCOAP201420142014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/96477reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1088/1475-7516/2014/01/011info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/964772026-05-22T06:33:51Z
dc.title.none.fl_str_mv Thermal axion production
title Thermal axion production
spellingShingle Thermal axion production
Salvio, Alberto
Particle physics - cosmology connection
Axions
title_short Thermal axion production
title_full Thermal axion production
title_fullStr Thermal axion production
title_full_unstemmed Thermal axion production
title_sort Thermal axion production
dc.creator.none.fl_str_mv Salvio, Alberto
Strumia, Alessandro
Xue, Wei
author Salvio, Alberto
author_facet Salvio, Alberto
Strumia, Alessandro
Xue, Wei
author_role author
author2 Strumia, Alessandro
Xue, Wei
author2_role author
author
dc.contributor.none.fl_str_mv SCOAP
dc.subject.none.fl_str_mv Particle physics - cosmology connection
Axions
topic Particle physics - cosmology connection
Axions
description We reconsider thermal production of axions in the early universe, including axion couplings to all Standard Model (SM>) particles. Concerning the axion coupling to gluons, we find that thermal effects enhance the axion production rate by a factor of few with respect to previous computations performed in the limit of small strong gauge coupling. Furthermore, we find that the top Yukawa coupling induces a much larger axion production rate, unless the axion couples to SM particles only via anomalies.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/96477
url http://hdl.handle.net/10261/96477
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1088/1475-7516/2014/01/011
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Institute of Physics Publishing
publisher.none.fl_str_mv Institute of Physics Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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