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Towards a UV completion of chameleons in string theory

dc.contributor.authorHinterbichler, Kurt
dc.contributor.authorKhoury, Justin
dc.contributor.authorNastase, Horatiu [UNESP]
dc.contributor.institutionUniv Penn
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:55:12Z
dc.date.accessioned2014-05-20T14:10:13Z
dc.date.available2013-09-30T18:55:12Z
dc.date.available2014-05-20T14:10:13Z
dc.date.issued2011-03-01
dc.description.abstractChameleons are scalar fields that couple directly to ordinary matter with gravitational strength, but which nevertheless evade the stringent constraints on tests of gravity because of properties they acquire in the presence of high ambient matter density. Chameleon theories were originally constructed in a bottom-up, phenomenological fashion, with potentials and matter couplings designed to hide the scalar from experiments. In this paper, we attempt to embed the chameleon scenario within string compactifications, thus UV completing the scenario. We look for stabilized potentials that can realize a screening mechanism, and we find that the volume modulus rather generically works as a chameleon, and in fact the supersymmetric potential used by Kachru, Kallosh, Linde and Trivedi (KKLT) is an example of this type. We consider all constraints from tests of gravity, allowing us to put experimental constraints on the KKLT parameters.en
dc.description.affiliationUniv Penn, Ctr Particle Cosmol, Dept Phys & Astron, Philadelphia, PA 19104 USA
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01140070 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01140070 São Paulo, Brazil
dc.description.sponsorshipUniversity of Pennsylvania
dc.description.sponsorshipAlfred P. Sloan Foundation
dc.format.extent26
dc.identifierhttp://dx.doi.org/10.1007/JHEP03(2011)061
dc.identifier.citationJournal of High Energy Physics. New York: Springer, n. 3, p. 26, 2011.
dc.identifier.doi10.1007/JHEP03(2011)061
dc.identifier.issn1126-6708
dc.identifier.urihttp://hdl.handle.net/11449/24271
dc.identifier.wosWOS:000289295200061
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of High Energy Physics
dc.relation.ispartofsjr1,227
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectStrings and branes phenomenologyen
dc.titleTowards a UV completion of chameleons in string theoryen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulopt

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