Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry

A large primordial lepton asymmetry can lead to successful baryogenesis by preventing the restoration of electroweak symmetry at high temperatures, thereby suppressing the sphaleron rate. This asymmetry can also lead to a first-order cosmic QCD transition, accompanied by detectable gravitational wav...

Descripción completa

Detalles Bibliográficos
Autores: Gao, F, Harz, Julia, Hati, C., Lu, Yi., Oldengott, Isabel M., White, Graham
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/398203
Acceso en línea:http://hdl.handle.net/10261/398203
https://api.elsevier.com/content/abstract/scopus_id/105009341759
Access Level:acceso abierto
Palabra clave:Baryo-and Leptogenesis
Phase Diagram or Equation of State
| Phase Transitions in the Early Universe
id ES_e2be7cfa7e5318eb73b71b8f1b7657b2
oai_identifier_str oai:digital.csic.es:10261/398203
network_acronym_str ES
network_name_str España
repository_id_str
spelling Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetryGao, FHarz, JuliaHati, C.Lu, Yi.Oldengott, Isabel M.White, GrahamBaryo-and LeptogenesisPhase Diagram or Equation of State| Phase Transitions in the Early UniverseA large primordial lepton asymmetry can lead to successful baryogenesis by preventing the restoration of electroweak symmetry at high temperatures, thereby suppressing the sphaleron rate. This asymmetry can also lead to a first-order cosmic QCD transition, accompanied by detectable gravitational wave (GW) signals. By employing next-to-leading order dimensional reduction we determine that the necessary lepton asymmetry is approximately one order of magnitude smaller than previously estimated. Incorporating an updated QCD equation of state that harmonizes lattice and functional QCD outcomes, we pinpoint the range of lepton flavor asymmetries capable of inducing a first-order cosmic QCD transition. To maintain consistency with observational constraints from the Cosmic Microwave Background and Big Bang Nucleosynthesis, achieving the correct baryon asymmetry requires entropy dilution by approximately a factor of ten. However, the first-order QCD transition itself can occur independently of entropy dilution. We propose that the sphaleron freeze-in mechanism can be investigated through forthcoming GW experiments such as μAres.Peer reviewedSpringer NatureMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Generalitat Valenciana0000-0001-5925-51100000-0002-8362-40830000-0003-4033-00820000-0003-3556-93040000-0002-2089-31120000-0003-2541-6785Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/398203https://api.elsevier.com/content/abstract/scopus_id/105009341759reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/GVA//CIDEIGinfo:eu-repo/grantAgreement/MICINN//PID2020-113775GB-I00Journal of High Energy Physicshttps://doi.org/10.1007/JHEP06(2025)247Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3982032026-05-22T06:33:51Z
dc.title.none.fl_str_mv Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
title Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
spellingShingle Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
Gao, F
Baryo-and Leptogenesis
Phase Diagram or Equation of State
| Phase Transitions in the Early Universe
title_short Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
title_full Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
title_fullStr Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
title_full_unstemmed Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
title_sort Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
dc.creator.none.fl_str_mv Gao, F
Harz, Julia
Hati, C.
Lu, Yi.
Oldengott, Isabel M.
White, Graham
author Gao, F
author_facet Gao, F
Harz, Julia
Hati, C.
Lu, Yi.
Oldengott, Isabel M.
White, Graham
author_role author
author2 Harz, Julia
Hati, C.
Lu, Yi.
Oldengott, Isabel M.
White, Graham
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Generalitat Valenciana
0000-0001-5925-5110
0000-0002-8362-4083
0000-0003-4033-0082
0000-0003-3556-9304
0000-0002-2089-3112
0000-0003-2541-6785
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Baryo-and Leptogenesis
Phase Diagram or Equation of State
| Phase Transitions in the Early Universe
topic Baryo-and Leptogenesis
Phase Diagram or Equation of State
| Phase Transitions in the Early Universe
description A large primordial lepton asymmetry can lead to successful baryogenesis by preventing the restoration of electroweak symmetry at high temperatures, thereby suppressing the sphaleron rate. This asymmetry can also lead to a first-order cosmic QCD transition, accompanied by detectable gravitational wave (GW) signals. By employing next-to-leading order dimensional reduction we determine that the necessary lepton asymmetry is approximately one order of magnitude smaller than previously estimated. Incorporating an updated QCD equation of state that harmonizes lattice and functional QCD outcomes, we pinpoint the range of lepton flavor asymmetries capable of inducing a first-order cosmic QCD transition. To maintain consistency with observational constraints from the Cosmic Microwave Background and Big Bang Nucleosynthesis, achieving the correct baryon asymmetry requires entropy dilution by approximately a factor of ten. However, the first-order QCD transition itself can occur independently of entropy dilution. We propose that the sphaleron freeze-in mechanism can be investigated through forthcoming GW experiments such as μAres.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/398203
https://api.elsevier.com/content/abstract/scopus_id/105009341759
url http://hdl.handle.net/10261/398203
https://api.elsevier.com/content/abstract/scopus_id/105009341759
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/GVA//CIDEIG
info:eu-repo/grantAgreement/MICINN//PID2020-113775GB-I00
Journal of High Energy Physics
https://doi.org/10.1007/JHEP06(2025)247
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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
_version_ 1869422438214795264
score 15,81155

Similares en LA Referencia