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The impact of particle production on gravitational baryogenesis

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dc.contributor.authorLima, J. A.S.
dc.contributor.authorSingleton, D. [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionCalifornia State University Fresno
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstitute of Experimental and Theoretical Physics Al-Farabi KazNU
dc.date.accessioned2018-12-11T16:44:11Z
dc.date.available2018-12-11T16:44:11Z
dc.date.issued2016-11-10
dc.description.abstractBaryogenesis driven by curvature effects is investigated by taking into account gravitationally induced particle production in the very early Universe. In our scenario, the baryon asymmetry is generated dynamically during an inflationary epoch powered by ultra-relativistic particles. The adiabatic particle production rate provides both the needed negative pressure to accelerate the radiation dominated Universe and a non-zero chemical potential which distinguishes baryons and anti-baryons thereby producing a baryon asymmetry in agreement with the observed value. Reciprocally, the present day asymmetry may be used to determine the inflationary scale at early times. Successful gravitational baryogenesis is dynamically generated for many different choices of the relevant model parameters.en
dc.description.affiliationDepartamento de Astronomia Universidade de São Paulo, Rua do Matão 1226
dc.description.affiliationDepartment of Physics California State University Fresno
dc.description.affiliationICTP South American Institute for Fundamental Research UNESP – Univ. Estadual Paulista, Rua Dr. Bento T. Ferraz 271
dc.description.affiliationInstitute of Experimental and Theoretical Physics Al-Farabi KazNU
dc.description.affiliationUnespICTP South American Institute for Fundamental Research UNESP – Univ. Estadual Paulista, Rua Dr. Bento T. Ferraz 271
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipMinistério da Educação e Ciência
dc.description.sponsorshipIdFAPESP: 11/51676-9
dc.description.sponsorshipIdCNPq: 3105402014-3
dc.description.sponsorshipIdCAPES: 88881.068485/2014
dc.format.extent506-511
dc.identifierhttp://dx.doi.org/10.1016/j.physletb.2016.10.005
dc.identifier.citationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 762, p. 506-511.
dc.identifier.doi10.1016/j.physletb.2016.10.005
dc.identifier.file2-s2.0-84992515533.pdf
dc.identifier.issn0370-2693
dc.identifier.scopus2-s2.0-84992515533
dc.identifier.urihttp://hdl.handle.net/11449/169064
dc.language.isoeng
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.relation.ispartofsjr2,336
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.titleThe impact of particle production on gravitational baryogenesisen
dc.typeArtigo
dspace.entity.typePublication

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