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THE HIGGS PORTAL and AN UNIFIED MODEL FOR DARK ENERGY and DARK MATTER

dc.contributor.authorBertolami, O.
dc.contributor.authorRosenfeld, Rogério [UNESP]
dc.contributor.institutionInst Super Tecn
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:53:58Z
dc.date.accessioned2014-05-20T14:09:40Z
dc.date.available2013-09-30T18:53:58Z
dc.date.available2014-05-20T14:09:40Z
dc.date.issued2008-12-10
dc.description.abstractWe examine a scenario where the Higgs boson is coupled to an additional Standard Model singlet scalar field from a hidden sector. We show that, in the case where this field is very light and has already relaxed to its nonzero vacuum expectation value, one gets a very stringent limit on the mixing angle between the hidden sector scalar and the Higgs field from fifth force experiments. However, this limit does not imply in a small coupling due to the large difference of vacuum expectation values. In the case that the hidden sector scalar is identified with the quintessence field, responsible for the recent acceleration of the universe, the most natural potential describing the interaction is disfavored since it results in a time-variation of the Fermi scale. We show that an ad hoc modification of the potential describing the Higgs interaction with the quintessence field may result in an unified picture of dark matter and dark energy, where dark energy is the zero-mode classical field rolling the usual quintessence potential and the dark matter candidate is the quantum excitation ( particle) of the field, which is produced in the universe due to its coupling to the Higgs boson. This coupling also generates a mass for the new particle that, contrary to usual quintessence models, does not have to be small, since it does not affect the evolution of classical field. In this scenario, a feasible dark matter density can be, under conditions, obtained.en
dc.description.affiliationInst Super Tecn, Dept Fis, P-1049001 Lisbon, Portugal
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01405900 São Paulo, Brazil
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFCT: POCI/FIS/56093/2004
dc.description.sponsorshipIdCNPq: 309158/2006-0
dc.description.sponsorshipIdFAPESP: 04/13668-0
dc.format.extent4817-4827
dc.identifier.citationInternational Journal of Modern Physics A. Singapore: World Scientific Publ Co Pte Ltd, v. 23, n. 30, p. 4817-4827, 2008.
dc.identifier.issn0217-751X
dc.identifier.urihttp://hdl.handle.net/11449/24212
dc.identifier.wosWOS:000261634300004
dc.language.isoeng
dc.publisherWorld Scientific Publ Co Pte Ltd
dc.relation.ispartofInternational Journal of Modern Physics A
dc.relation.ispartofjcr1.291
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectDark energyen
dc.subjectdark matteren
dc.subjectHiggs bosonen
dc.titleTHE HIGGS PORTAL and AN UNIFIED MODEL FOR DARK ENERGY and DARK MATTERen
dc.typeArtigo
dcterms.licensehttp://www.worldscientific.com/page/authors/author-rights
dcterms.rightsHolderWorld Scientific Publ Co Pte Ltd
unesp.author.orcid0000-0002-7672-0560[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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