On the wall velocity dependence of electroweak baryogenesis

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dc.creatorGláuber Carvalho Dorsch
dc.creatorStephan J. Huber
dc.creatorThomas Konstandin
dc.date.accessioned2023-10-30T15:49:53Z
dc.date.accessioned2025-09-09T00:21:28Z
dc.date.available2023-10-30T15:49:53Z
dc.date.issued2021
dc.identifier.doihttps://doi.org/10.1088/1475-7516/2021/08/020
dc.identifier.issn1475-7516
dc.identifier.urihttps://hdl.handle.net/1843/60245
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Cosmology and Astroparticle Physics
dc.rightsAcesso Restrito
dc.subjectTransição de fase
dc.subjectCosmologia
dc.subjectEquações de Boltzmann
dc.subject.otherBaryon asymmetry
dc.subject.otherCosmological phase transitions
dc.subject.otherCosmology
dc.titleOn the wall velocity dependence of electroweak baryogenesis
dc.typeArtigo de periódico
local.citation.epage23
local.citation.issue8
local.citation.spage1
local.citation.volume2021
local.description.resumoWe re-evaluate the status of supersonic electroweak baryogenesis using a gener- alized fluid Ansatz for the non-equilibrium distribution functions. Instead of truncating the expansion to first order in momentum, we allow for higher order terms as well, including up to 21 fluctuations. The collision terms are computed analytically at leading-log accuracy. We also point out inconsistencies in the standard treatments of transport in electroweak baryoge- nesis, arguing that one cannot do without specifying an Ansatz for the distribution function. We present the first analysis of baryogenesis using the fluid approximation to higher orders. Our results support the recent findings that baryogenesis may indeed be possible even in the presence of supersonic wall velocities.
local.identifier.orcidhttps://orcid.org/0000-0002-6177-366X
local.identifier.orcidhttps://orcid.org/0000-0002-2492-7930
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://iopscience.iop.org/article/10.1088/1475-7516/2021/08/020

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