On the wall velocity dependence of electroweak baryogenesis

Use este identificador para citar ou linkar para este item: http://hdl.handle.net/1843/60245

Tipo:	Artigo de Periódico
Título:	On the wall velocity dependence of electroweak baryogenesis
Autor(es):	Gláuber Carvalho Dorsch Stephan J. Huber Thomas Konstandin
Resumo:	We 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.
Assunto:	Transição de fase Cosmologia Equações de Boltzmann
Idioma:	eng
País:	Brasil
Editor:	Universidade Federal de Minas Gerais
Sigla da Instituição:	UFMG
Departamento:	ICX - DEPARTAMENTO DE FÍSICA
Tipo de Acesso:	Acesso Restrito
Identificador DOI:	https://doi.org/10.1088/1475-7516/2021/08/020
URI:	http://hdl.handle.net/1843/60245
Data do documento:	2021
metadata.dc.url.externa:	https://iopscience.iop.org/article/10.1088/1475-7516/2021/08/020
metadata.dc.relation.ispartof:	Journal of Cosmology and Astroparticle Physics
Aparece nas coleções:	Artigo de Periódico

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