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dc.contributor.authorFroggatt, C.en
dc.contributor.authorNielsen, H.en
dc.contributor.authorNevzorov, R.en
dc.contributor.authorThomas, A.en
dc.identifier.citationInternational Journal of Modern Physics A, 2017; 32(17):1730013-1-1730013-15en
dc.descriptionPDF unavailableen
dc.description.abstractIn N=1 supergravity the tree-level scalar potential of the hidden sector may have a minimum with broken local supersymmetry (SUSY) as well as a supersymmetric Minkowski vacuum. These vacua can be degenerate, allowing for a consistent implementation of the multiple point principle. The first minimum where SUSY is broken can be identified with the physical phase in which we live. In the second supersymmetric phase, in flat Minkowski space, SUSY may be broken dynamically either in the observable or in the hidden sectors inducing a tiny vacuum energy density. We argue that the exact degeneracy of these phases may shed light on the smallness of the cosmological constant. Other possible phenomenological implications are also discussed. In particular, we point out that the presence of such degenerate vacua may lead to small values of the quartic Higgs coupling and its beta function at the Planck scale in the physical phase.en
dc.description.statementofresponsibilityC.D. Froggatt, H.B. Nielsen, R. Nevzorov, A.W. Thomasen
dc.publisherWorld Scientificen
dc.rightsCopyright© 2017 World Scientific Publishing Co Pte Ltden
dc.subjectSupergravity; cosmological constant; Higgs bosonen
dc.titleDark energy density in SUGRA models and degenerate vacuaen
dc.typeJournal articleen
pubs.library.collectionPhysics publicationsen
dc.identifier.orcidThomas, A. [0000-0003-0026-499X]en
Appears in Collections:Physics publications

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