Cosmological Bounds Of Sterile Neutrinos In A S U(3) (c) Asus U(3) (l) Asus U(3) (r) Asuu(1) (n) Model As Dark Matter Candidates

dc.creatorFerreira
dc.creatorCP; Guzzo
dc.creatorMM; de Holanda
dc.creatorPC
dc.date2016
dc.date2016-12-06T18:29:45Z
dc.date2016-12-06T18:29:45Z
dc.date.accessioned2018-03-29T02:02:16Z
dc.date.available2018-03-29T02:02:16Z
dc.identifier1678-4448
dc.identifierBrazilian Journal Of Physics. SPRINGER, n. 46, n. 4, p. 453 - 461.
dc.identifier1678-4448
dc.identifierWOS:000379687800010
dc.identifier10.1007/s13538-016-0427-2
dc.identifierhttp://link-springer-com.ez88.periodicos.capes.gov.br/article/10.1007%2Fs13538-016-0427-2
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/319852
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1310618
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionWe study sterile neutrinos in an extension of the standard model, based on the gauge group S U(3) (C) aSuS U(3) (L) aSuS U(3) (R) aSuU(1) (N) , and use this model to illustrate how to apply cosmological limits to thermalized particles that decouple while relativistic. These neutrinos, N (a L) , can be dark matter candidates, with a kiloelectron volt mass range arising rather naturally in this model. We analyse the cosmological limits imposed by N (e f f) and dark matter abundance on these neutrinos. Assuming that these neutrinos have roughly equal masses and are not CDM, we conclude that the N (e f f) experimental value can be satisfied in some cases and the abundance constraint implies that these neutrinos are hot dark matter. With this information, we give upper bounds on the Yukawa coupling between the sterile neutrinos and a scalar field, the possible values of the VEV of this scalar field and lower bounds to the mass of one gauge boson of the model.
dc.description46
dc.description
dc.description453
dc.description461
dc.descriptionConselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
dc.descriptionFundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description
dc.description
dc.description
dc.languageEnglish
dc.publisherSPRINGER
dc.publisherNEW YORK
dc.relationBrazilian Journal of Physics
dc.rightsfechado
dc.sourceWOS
dc.subjectSterile Neutrinos
dc.subjectExtensions Of The Standard Model
dc.subjectCosmology
dc.subjectDark Matter
dc.titleCosmological Bounds Of Sterile Neutrinos In A S U(3) (c) Asus U(3) (l) Asus U(3) (r) Asuu(1) (n) Model As Dark Matter Candidates
dc.typeArtículos de revistas


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